unc emergency responder respirator

UNC Respiratory Protection Program UNC Respiratory Protection Program for Environment, Health & Safety for Environment, Health & Safety

Department Emergency RespondersDepartment Emergency Responders

Presented byPresented by

UNC-CH Environment, Health & SafetyUNC-CH Environment, Health & Safety

Class ObjectivesClass Objectives Be able to explain the Importance of the Respiratory Be able to explain the Importance of the Respiratory

Protection Program in relation to UNC-CH policy, OSHA Protection Program in relation to UNC-CH policy, OSHA and EPA-HAZWOPER standards. and EPA-HAZWOPER standards.

Understand protection controls and EPA/OSHA levels of Understand protection controls and EPA/OSHA levels of

respiratory protection for hazardous material response respiratory protection for hazardous material response and hazardous waste sites. and hazardous waste sites.

Be able to discuss the importance of the Selection Be able to discuss the importance of the Selection Process for different Types of Respirators for Process for different Types of Respirators for Emergency Response Emergency Response

Be able to demonstrate the limitations and Safety Issues Be able to demonstrate the limitations and Safety Issues with the use of negative pressure air purifying with the use of negative pressure air purifying respirators; respirators;

Class ObjectivesClass Objectives Be able to select, demonstrate the limitations and Be able to select, demonstrate the limitations and

use of Air Purifying Respirator Filters and use of Air Purifying Respirator Filters and Respirator Chemical CartridgesRespirator Chemical Cartridges

Be able to demonstrate the inspection, donning and Be able to demonstrate the inspection, donning and doffing procedures for air purifying respiratorsdoffing procedures for air purifying respirators

Be able to demonstrate, using a negative pressure Be able to demonstrate, using a negative pressure respirator, the required negative and positive user respirator, the required negative and positive user seal check proceduresseal check procedures

Discuss the importance of Fit-Testing ProceduresDiscuss the importance of Fit-Testing Procedures

Discuss Maintenance & Storage RequirementsDiscuss Maintenance & Storage Requirements Review and Post TestReview and Post Test

IntroductionIntroductionThe University of North Carolina at Chapel Hill (UNC-CH) RespiratoryThe University of North Carolina at Chapel Hill (UNC-CH) RespiratoryProtection Program (RPP) describes written policy and procedures for the Protection Program (RPP) describes written policy and procedures for the use of respirators to protect the health of employees in accordance with theuse of respirators to protect the health of employees in accordance with theOccupational Safety and Health Administration’s (OSHA) RespiratoryOccupational Safety and Health Administration’s (OSHA) RespiratoryProtection Standard, 29 CFR 1910.134 (General Industry RespiratorProtection Standard, 29 CFR 1910.134 (General Industry RespiratorStandard).Standard).

Under 29 CFR 1910.134, OSHA requires a formal written program for theUnder 29 CFR 1910.134, OSHA requires a formal written program for theselection and use of respirators. The two basic objectives are to protect the selection and use of respirators. The two basic objectives are to protect the worker from respiratory hazards and to prevent injury to the wearer from theworker from respiratory hazards and to prevent injury to the wearer from theincorrect use or malfunction of the respirator. This program includesincorrect use or malfunction of the respirator. This program includesprotocols for the selection, training, fitting use, storage, and maintenance of protocols for the selection, training, fitting use, storage, and maintenance of respirators.respirators.

For additional guidance regarding UNC-CH Respiratory Protection ProgramFor additional guidance regarding UNC-CH Respiratory Protection Programpolicies and procedures, click on the EHS Workplace Safety Respiratory policies and procedures, click on the EHS Workplace Safety Respiratory Section at: Section at: http://www.ehs.unc.edu/workplace_safety/rpp.shtml

http://www.ehs.unc.edu/workplace_safety/rpp.shtml

IntroductionIntroduction

Some employees are also enrolled in the RPP for other specific Some employees are also enrolled in the RPP for other specific standards standards

(e.g. 29 CFR Subpart Z-Toxic and Hazardous Substances 1910.1001-(e.g. 29 CFR Subpart Z-Toxic and Hazardous Substances 1910.1001-asbestos) or the potential to exceed limits in other specific standards. asbestos) or the potential to exceed limits in other specific standards.

For UNC-CH EHS Emergency Responders, personal protective For UNC-CH EHS Emergency Responders, personal protective equipment equipment

use requirements are also designated in the OSHA Hazardous Wasteuse requirements are also designated in the OSHA Hazardous WasteOperations and Emergency Response (HAZWOPER) Standard, 29 CFROperations and Emergency Response (HAZWOPER) Standard, 29 CFR1910.120. 1910.120.

Respirators should only be used as a Respirators should only be used as a "last line of defense""last line of defense" when when engineeringengineering

control systems are not feasible. Engineering control systems, such as control systems are not feasible. Engineering control systems, such as adequate ventilation should be used to negate the need for respirators. adequate ventilation should be used to negate the need for respirators.

Use of Controls for ProtectionUse of Controls for Protection1910.120(g)(1)(i) 1910.120(g)(1)(i) Engineering controls, work practices and PPE forEngineering controls, work practices and PPE forsubstances regulated in subparts G and Z,substances regulated in subparts G and Z, states: states:

Engineering controls and work practices shall be instituted to reduce andEngineering controls and work practices shall be instituted to reduce andmaintain employee exposure to or below the permissible exposure limits formaintain employee exposure to or below the permissible exposure limits forsubstances regulated by 29 CFR part 1910, to the extent required by subpartsubstances regulated by 29 CFR part 1910, to the extent required by subpartZ, except to the extent that such controls and practices are not feasible. Z, except to the extent that such controls and practices are not feasible.

Engineering controlsEngineering controls which may be feasible include the use of pressurized which may be feasible include the use of pressurizedcabs or control booths on equipment, and/or the use of remotely operatedcabs or control booths on equipment, and/or the use of remotely operated material handling equipment. material handling equipment.

Work practicesWork practices which may be feasible are removing all non-essential which may be feasible are removing all non-essentialemployees from potential exposure during opening of drums, wetting downemployees from potential exposure during opening of drums, wetting downdusty operations and locating employees dusty operations and locating employees upwindupwind of possible hazards. of possible hazards.

Use of Controls for ProtectionUse of Controls for Protection

1910.120(g)(1)(ii) states: Whenever engineering controls and 1910.120(g)(1)(ii) states: Whenever engineering controls and workwork

practices are not feasible or not required, any reasonable practices are not feasible or not required, any reasonable combination ofcombination of

engineering controls, work practices and engineering controls, work practices and PPEPPE shall be used to shall be used to reduce and reduce and

maintain employee exposures to or below the permissible maintain employee exposures to or below the permissible exposure limit orexposure limit or

dose limits for substances dose limits for substances regulatedregulated by 29 CFR part 1910, by 29 CFR part 1910, subpart Z.subpart Z.

Use of Controls for ProtectionUse of Controls for Protection1910.120(g)(1)(i) 1910.120(g)(1)(i) Engineering controls, work practices and PPE forEngineering controls, work practices and PPE forsubstances substances not regulatednot regulated in subparts G and Z, in subparts G and Z, states: states:

An appropriate combination of engineering controls, work practices andAn appropriate combination of engineering controls, work practices andpersonal protective equipment shall be used to reduce and maintainpersonal protective equipment shall be used to reduce and maintainemployee exposure to or below published exposure levels for hazardousemployee exposure to or below published exposure levels for hazardoussubstances and health hazards substances and health hazards not regulatednot regulated by 29 CFR part 1910, by 29 CFR part 1910,

subpartssubpartsG and Z. G and Z.

The employer may use the published literature and MSDS as aThe employer may use the published literature and MSDS as aguide in making the employer’s determination as to what level of guide in making the employer’s determination as to what level of

protectionprotectionthe employer believes is appropriate for hazardous substances and healththe employer believes is appropriate for hazardous substances and healthhazards for which there is no permissible exposure limit or publishedhazards for which there is no permissible exposure limit or publishedexposure limit. exposure limit.

Review of Levels of PPE Review of Levels of PPE Selecting the proper PPE for a response involves identifying the Selecting the proper PPE for a response involves identifying the

potential potential hazards that may be faced, the work requirements, and task-hazards that may be faced, the work requirements, and task-

specificspecificconditions, as well as assessing the durability and performance conditions, as well as assessing the durability and performance

of the PPEof the PPEmaterial. PPE ensembles are classified into 4 levels outlined by material. PPE ensembles are classified into 4 levels outlined by

29 CFR29 CFR1910.120, as Level A, B, C and D.1910.120, as Level A, B, C and D.

Review of Levels of PPE Review of Levels of PPE Level ALevel A:: The hazardous substance has been identified and requires the The hazardous substance has been identified and requires thehighest level of protection for the skin, eye, and respiratory system highest level of protection for the skin, eye, and respiratory system

basedbasedon either the measured (or potential for) high concentration of on either the measured (or potential for) high concentration of

atmosphericatmosphericvapors, gasses, or particulates; or the site operations and work functionsvapors, gasses, or particulates; or the site operations and work functionsinvolve a high potential for splash, immersion, or exposure to involve a high potential for splash, immersion, or exposure to

unexpectedunexpectedvapors, gasses, or particulates of materials that are harmful to skin orvapors, gasses, or particulates of materials that are harmful to skin orcapable of being absorbed through the skin. capable of being absorbed through the skin.

Substances with a high degree of hazard to the skin are known or Substances with a high degree of hazard to the skin are known or suspectedsuspected

to be present, and skin contact is possible; to be present, and skin contact is possible;

PPE consists of totally encapsulated chemical protective suit and PPE consists of totally encapsulated chemical protective suit and positivepositive

pressure full-facepiece self-contained breathing apparatus, chemical pressure full-facepiece self-contained breathing apparatus, chemical protective gloves, and boots . protective gloves, and boots .

All 5 senses are impaired when in this level of protection. All 5 senses are impaired when in this level of protection.

Review of Levels of PPE Review of Levels of PPE Level ALevel A:: Another Illustration: Another Illustration:

*Courtesy of the Environmental Protection Agency (EPA) *Courtesy of the Environmental Protection Agency (EPA) Website;Website;

Review of Levels of PPE Review of Levels of PPE Level BLevel B: : Protection should be used when the type and Protection should be used when the type and

atmosphericatmosphericconcentration of substances have been identified and require a concentration of substances have been identified and require a

high level ofhigh level ofrespiratory protection, but less skin protection. respiratory protection, but less skin protection.

The atmosphere contains less than 19.5% oxygen or the The atmosphere contains less than 19.5% oxygen or the presence ofpresence of

incompletely identified vapors or gasses is indicated by a direct-incompletely identified vapors or gasses is indicated by a direct-readingreading

instrument, but vapors and gasses are not suspected of instrument, but vapors and gasses are not suspected of containing highcontaining high

levels of chemicals harmful to the skin or capable of being levels of chemicals harmful to the skin or capable of being absorbed absorbed

through the skin. through the skin.

Review of Levels of PPE Review of Levels of PPE Level BLevel B: The highest level of respiratory protection consisting : The highest level of respiratory protection consisting

of either aof either apositive pressure, full-face piece self contained breathing positive pressure, full-face piece self contained breathing

apparatus orapparatus orpositive pressure supplied air respirator with escape SCBA.positive pressure supplied air respirator with escape SCBA.

Review of Levels of PPE Review of Levels of PPE Level CLevel C: : Protection should be used when all types of air Protection should be used when all types of air

contaminantscontaminantshave been identified, concentrations measured, and an air-have been identified, concentrations measured, and an air-

purifyingpurifyingrespirator is available that can remove the contaminants; and respirator is available that can remove the contaminants; and all criteria for the use of air-purifying respirators are met. all criteria for the use of air-purifying respirators are met. PPE includes a full-face or half face air-purifying respirator PPE includes a full-face or half face air-purifying respirator

(NIOSH(NIOSHapproved). Hooded chemical-resistant clothing such as tyvek, approved). Hooded chemical-resistant clothing such as tyvek,

inner andinner andouter gloves, and steel shank chemical resistant boots. outer gloves, and steel shank chemical resistant boots.

Review of Levels of PPE Review of Levels of PPE Level DLevel D: Should be used when the atmosphere contains no known : Should be used when the atmosphere contains no known

hazard; hazard; and work functions preclude splashes, immersion, or the potential forand work functions preclude splashes, immersion, or the potential forunexpected inhalation of or contact with hazardous levels of any unexpected inhalation of or contact with hazardous levels of any

chemicals. chemicals. ““Modified DModified D”: No inhalation hazard present. However, potential skin”: No inhalation hazard present. However, potential skincontact with chemicals may occur. contact with chemicals may occur.

*Courtesy of the EPA website; *Courtesy of the EPA website; Exxon Valdez Spill Recovery: Note: no respiratory protection is used, but Exxon Valdez Spill Recovery: Note: no respiratory protection is used, but chemical protective clothing is used. chemical protective clothing is used.

Review of Levels of PPE Review of Levels of PPE *Courtesy of the EPA website; *Courtesy of the EPA website; This Superfund site, called the Valley of the Drums, was one of the This Superfund site, called the Valley of the Drums, was one of the

earliest earliest and most serious hazardous waste sites because it involved a vast and most serious hazardous waste sites because it involved a vast

quantityquantityof illegally disposed material. Discovery of this site helped motivate of illegally disposed material. Discovery of this site helped motivate Congress to develop the Superfund law. (Courtesy EPA).Congress to develop the Superfund law. (Courtesy EPA).

Can you find the workers in this picture?Can you find the workers in this picture?

Selection of Respiratory Protection-Types Selection of Respiratory Protection-Types There are two primary types of respirators: Air-purifying and There are two primary types of respirators: Air-purifying and Atmosphere supplying.Atmosphere supplying.

1) 1) Air-Purifying Respirator (APR):Air-Purifying Respirator (APR): Both Negative & Positive Both Negative & Positive Pressure Types. Removes contaminants by mechanical Pressure Types. Removes contaminants by mechanical removal of particulates using filters and chemical removal of particulates using filters and chemical cartridges used for the removal of gasses & vapors by cartridges used for the removal of gasses & vapors by adsorption (surface binding). They can’t be worn in adsorption (surface binding). They can’t be worn in oxygen-deficient or IDLH atmospheres. The air oxygen-deficient or IDLH atmospheres. The air concentration must be within the maximum use concentration must be within the maximum use concentration of the respirator. concentration of the respirator.

2) 2) Atmosphere Supplying:Atmosphere Supplying: Provides fresh breathing air Provides fresh breathing air (“Grade D” quality) from an external source. Examples of (“Grade D” quality) from an external source. Examples of types of supplied air are Self-Contained Breathing types of supplied air are Self-Contained Breathing Apparatus (SCBA), and Airline respirators, .Apparatus (SCBA), and Airline respirators, .

Selection of Respiratory Protection-TypesSelection of Respiratory Protection-TypesAn An Air-Purifying Respirator (APR)Air-Purifying Respirator (APR) is a respirator with is a respirator with

an air-an air-purifying filter, cartridge, or canister that removes purifying filter, cartridge, or canister that removes

specific airspecific aircontaminants by passing ambient air through the air-contaminants by passing ambient air through the air-

purifying purifying element. An APR can be either a negative pressure or element. An APR can be either a negative pressure or

positivepositivepressure type.pressure type.

AirAir

Selection of Respirators-TypesSelection of Respirators-TypesA A Positive Pressure RespiratorPositive Pressure Respirator is a respirator in is a respirator in

which thewhich thepressure inside the respirator inlet covering exceeds pressure inside the respirator inlet covering exceeds

thetheambient air pressure outside the respirator.ambient air pressure outside the respirator.

A A Powered-Air Purifying Respirator (PAPR)Powered-Air Purifying Respirator (PAPR) is an is anexample of a positive pressure respirator. It uses a example of a positive pressure respirator. It uses a

blower blower motor (generally battery powered) to force the motor (generally battery powered) to force the

Ambient airAmbient airthrough air-purifying elements to the inlet covering. through air-purifying elements to the inlet covering.

Selection of Respiratory Protection-Use Selection of Respiratory Protection-Use FactorsFactors

To select an To select an Air Purifying RespiratorAir Purifying Respirator you must know: you must know:

The Identity of the contaminant. The Identity of the contaminant. Generally the Generally the contaminants can be found on the material safety data contaminants can be found on the material safety data sheet or product label. However, specific chemical sheet or product label. However, specific chemical reactions can create additional hazards. reactions can create additional hazards.

The Concentration of the contaminant The Concentration of the contaminant The airborne The airborne concentration of the contaminant must not exceed the concentration of the contaminant must not exceed the maximum use limit of the respirator (with cartridges and maximum use limit of the respirator (with cartridges and filters).filters).

The Exposure Limit for the contaminant. The Exposure Limit for the contaminant. This value is This value is typically found on the product material safety data sheet, typically found on the product material safety data sheet, NIOSH pocket guide to chemical hazards, or IH can NIOSH pocket guide to chemical hazards, or IH can provide this information. provide this information.


To select an To select an Air Purifying RespiratorAir Purifying Respirator you must know: you must know:

IDLH for the contaminantIDLH for the contaminant. The airborne concentration . The airborne concentration of the chemical substance must not be exceeded the IDLH of the chemical substance must not be exceeded the IDLH value. The NIOSH pocket guide to chemical hazards value. The NIOSH pocket guide to chemical hazards provides this information. provides this information. http://www.cdc.gov/niosh/npg. . Also on product Also on product MSDS.MSDS.

The Odor Threshold for the contaminantThe Odor Threshold for the contaminant. A warning . A warning

property exists when a chemical vapor has a distinct odor property exists when a chemical vapor has a distinct odor or taste, or when it causes respiratory tract or eye or taste, or when it causes respiratory tract or eye irritation. irritation.

The type of Chemical Cartridge to use for the The type of Chemical Cartridge to use for the contaminantcontaminant. The chemical substance must be able to be . The chemical substance must be able to be filtered, absorbed, or neutralized by the APR.filtered, absorbed, or neutralized by the APR.

The Oxygen Level:The Oxygen Level: atmospheric level of oxygen must be atmospheric level of oxygen must be above 19.5%above 19.5%

http://www.cdc.gov/niosh/npg


The following conditions exclude or may exclude use of an The following conditions exclude or may exclude use of an Air Purifying RespiratorAir Purifying Respirator::

Oxygen DeficiencyOxygen Deficiency

IDLH concentrations of specific substancesIDLH concentrations of specific substances

Entry into an unventilated or confined area where the Entry into an unventilated or confined area where the exposure conditions have not been characterized. exposure conditions have not been characterized.

Presence or potential presence of unidentified contaminants.Presence or potential presence of unidentified contaminants.

Contaminant concentrations are unknown or exceed Contaminant concentrations are unknown or exceed designated designated

maximum use concentrations (explained on following slides).maximum use concentrations (explained on following slides).

Identified gasses or vapors have inadequate warning Identified gasses or vapors have inadequate warning properties.properties.

High relative humidity (may reduce the protection offered by High relative humidity (may reduce the protection offered by the sorbent). the sorbent).

Selection of Respiratory Protection-Selection of Respiratory Protection-Supplied Air Supplied Air

Atmosphere-Supplying RespiratorAtmosphere-Supplying Respirator is a respirator thatis a respirator thatsupplies the user with breathing air from a source supplies the user with breathing air from a source

independent ofindependent ofthe ambient atmosphere. Types include supplied-air the ambient atmosphere. Types include supplied-air

respiratorsrespirators(SARs) and self-contained breathing apparatus (SCBA) units. (SARs) and self-contained breathing apparatus (SCBA) units.

Selection of Respiratory Protection-Selection of Respiratory Protection-Supplied Air Supplied Air Self-Contained Breathing Apparatus (SCBA) Self-Contained Breathing Apparatus (SCBA) is anis an

atmosphere supplying respirator for which the breathing atmosphere supplying respirator for which the breathing air air

source is designed to be carried by the user. This type of source is designed to be carried by the user. This type of respirator respirator

is considered to provide the highest level of respiratory is considered to provide the highest level of respiratory protection. protection.

Pressure-demand types of SCBAs are used for fire fighting,Pressure-demand types of SCBAs are used for fire fighting,rescue, emergency response, and other situations. They are rescue, emergency response, and other situations. They are acceptable for oxygen-deficient conditions, and against a acceptable for oxygen-deficient conditions, and against a

widewidevariety of contaminants, and for entry into IDLH variety of contaminants, and for entry into IDLH

atmospheres.atmospheres.Disadvantage is that the work time is limited to amount of Disadvantage is that the work time is limited to amount of

air in theair in theexternal tank and the extra weight of the tank.external tank and the extra weight of the tank.

Selection of Respiratory Protection-IDLH Selection of Respiratory Protection-IDLH Immediately Dangerous to Life and Health (IDLH)Immediately Dangerous to Life and Health (IDLH) is an is anatmosphere that posses an immediate threat to life, would causeatmosphere that posses an immediate threat to life, would causeirreversible, adverse, debilitating health effects, or would impair anirreversible, adverse, debilitating health effects, or would impair anindividuals ability to escape.individuals ability to escape.

For example, Oxygen-deficient atmospheres, less than 19.5 % oxygen For example, Oxygen-deficient atmospheres, less than 19.5 % oxygen byby

volume at sea level are considered (IDLH). Examples where IDLHvolume at sea level are considered (IDLH). Examples where IDLHsituations may occur include entry into unventilated silos, boilers, situations may occur include entry into unventilated silos, boilers,

tanks,tanks,sewers, etc.sewers, etc.

Other examples of IDLH situations include:Other examples of IDLH situations include:-When a specific chemical exceeds its established IDLH concentration. -When a specific chemical exceeds its established IDLH concentration.

IDLH values are published by the National Institute of Occupational IDLH values are published by the National Institute of Occupational Safety and Health (NIOSH) in Safety and Health (NIOSH) in the the NIOSH Pocket Guide to NIOSH Pocket Guide to Chemical HazardsChemical Hazards. . http://www.cdc.gov/niosh/npg. .

-Chemical concentrations that are in excess of their published IDLH -Chemical concentrations that are in excess of their published IDLH value and in excess of their Lower Explosive Limit are considered value and in excess of their Lower Explosive Limit are considered IDLH. IDLH.

-Firefighting and Emergency Response to an unknown contaminated -Firefighting and Emergency Response to an unknown contaminated atmosphere are considered IDLH. atmosphere are considered IDLH.

http://www.cdc.gov/niosh/npg

Selection of Respiratory Protection-IDLH Selection of Respiratory Protection-IDLH

Is the below picture an example of a potential IDLH Is the below picture an example of a potential IDLH environment? environment?

What other hazards are present? What other hazards are present?

http://yosemite.epa.gov/r10/cleanup.nsf/9f3c21896330b4898825687b007a0f33/41acf49d06cb975a88256856005e40f2/$FILE/Pic%234workers.jpg

Selection of Respiratory Protection-APFsSelection of Respiratory Protection-APFs Assigned protection factors (APFs)Assigned protection factors (APFs): APFs are very : APFs are very

important part of the selection process. important part of the selection process.

The assigned protection factor is the expected workplace The assigned protection factor is the expected workplace level of respiratory protection that would be provided by a level of respiratory protection that would be provided by a properly functioning respirator or a class of respirator to properly functioning respirator or a class of respirator to properly fitted and trained users. APFs are a measure of properly fitted and trained users. APFs are a measure of the overall effectiveness of a respirator used in the overall effectiveness of a respirator used in conjunction with a good respirator program. conjunction with a good respirator program.

Many groups have developed lists of APFs. In the United Many groups have developed lists of APFs. In the United States, the two main lists of APFs are from the American States, the two main lists of APFs are from the American National Standards Institute (ANSI) and NIOSH; however, National Standards Institute (ANSI) and NIOSH; however, respirator manufacturers also recommend assigned respirator manufacturers also recommend assigned protection factors.protection factors.

Selection of Respiratory Protection-APFsSelection of Respiratory Protection-APFs Assigned protection factors (APFs)Assigned protection factors (APFs): In these studies : In these studies

measurements (air samples) are taken simultaneously measurements (air samples) are taken simultaneously outside and inside the respirator as the worker does his or outside and inside the respirator as the worker does his or her normal job. her normal job.

An APF of 10 means that the respirator will reduce the An APF of 10 means that the respirator will reduce the

contaminant's concentration actually breathed in by 10 contaminant's concentration actually breathed in by 10 times compared with the actual airborne concentration.times compared with the actual airborne concentration.

Examples of Assigned Protection Factors (NIOSH Examples of Assigned Protection Factors (NIOSH Guidance):Guidance):

1. 1. Half face piece APRHalf face piece APR: both filtering face piece and : both filtering face piece and elastomeric dual cartridge: elastomeric dual cartridge: 1010

2. 2. Full face piece APRFull face piece APR: : 50 or 10050 or 100 ( PF 100, e.g. North 7600 ( PF 100, e.g. North 7600 8A series)8A series)

3. 3. Powered Air Purifying RespiratorPowered Air Purifying Respirator (full face): (full face): 1,0001,000 4. 4. Self Contained Breathing ApparatusSelf Contained Breathing Apparatus: : 10,00010,000

Selection of Respiratory Protection-MUCSelection of Respiratory Protection-MUC Maximum Use Concentration (MUC)Maximum Use Concentration (MUC): A respirator may : A respirator may

not be used at a concentration greater than the not be used at a concentration greater than the contaminant’s occupational exposure limit times the contaminant’s occupational exposure limit times the assigned protection factor for the type of respirator used. assigned protection factor for the type of respirator used.

This is called the Maximum Use Concentration of the This is called the Maximum Use Concentration of the respirator. It is determined by multiplying the PEL or respirator. It is determined by multiplying the PEL or Occupational Exposure Limit by the APF.Occupational Exposure Limit by the APF.

MUC = PEL (OEL) of contaminant X APF of the MUC = PEL (OEL) of contaminant X APF of the respiratorrespirator

However, other factors must be considered. For example However, other factors must be considered. For example

the MUC will be limited by the following:the MUC will be limited by the following: * IDLH value* IDLH value *Chemical cartridge rating *Chemical cartridge rating *Oxygen Deficient Atmospheres*Oxygen Deficient Atmospheres

Selection of Respiratory Protection-MUCSelection of Respiratory Protection-MUCMaximum Use Concentration (MUC):Maximum Use Concentration (MUC):

MUC = PEL (OEL) of contaminant X APF of the respiratorMUC = PEL (OEL) of contaminant X APF of the respirator

For example, Toluene’s PEL is 200 PPM. A ½ face APR For example, Toluene’s PEL is 200 PPM. A ½ face APR hashas

an APF of 10. What is the MUC? Could a ½ face APR bean APF of 10. What is the MUC? Could a ½ face APR beused safely for this environment if the air concentration used safely for this environment if the air concentration

waswas2,000 PPM?. 2,000 PPM?.

Do any other factors apply?Do any other factors apply?


MUC = PEL (OEL) of contaminant X APF of the respiratorMUC = PEL (OEL) of contaminant X APF of the respirator

Answer:Answer: The MUC for the ½ face APR is 2,000 PPM. The MUC for the ½ face APR is 2,000 PPM.

However, other important factors must be considered besides the However, other important factors must be considered besides the MUCMUC

calculation.calculation.

The chemical cartridges would probably experience breakthrough The chemical cartridges would probably experience breakthrough atat

1,000 ppm. 1,000 ppm.

In addition, the NIOSH IDLH value for Toluene is 500 ppm. In addition, the NIOSH IDLH value for Toluene is 500 ppm.

*Therefore at this concentration, a ½ face APR *Therefore at this concentration, a ½ face APR can notcan not be used be used due todue to

an IDLH environment and due to over saturation of the chemicalan IDLH environment and due to over saturation of the chemicalcartridges. cartridges. Only a positive pressure SCBA or positive pressure suppliedOnly a positive pressure SCBA or positive pressure suppliedair line respirator with an escape cylinder could be usedair line respirator with an escape cylinder could be used ..!!!!!!!!


MUC = PEL (OEL) of contaminant X APF of the MUC = PEL (OEL) of contaminant X APF of the respiratorrespirator

For example, there is a large spill of Acetic Anhydride. After For example, there is a large spill of Acetic Anhydride. After initial initial

investigation in Level B protection, air monitoring determined investigation in Level B protection, air monitoring determined an air an air

concentration of 100 ppm. What would be an appropriate concentration of 100 ppm. What would be an appropriate respirator torespirator to

use for response to clean up the spill? use for response to clean up the spill? --The PEL = 5 PPMThe PEL = 5 PPM--IDLH value= 200 PPMIDLH value= 200 PPM--Assume a cartridge rating of 0.1% by volume = 1,000 PPMAssume a cartridge rating of 0.1% by volume = 1,000 PPMAnswer: A half face APR could not be used. MUC = PF 10 X 5 Answer: A half face APR could not be used. MUC = PF 10 X 5

= 50= 50A full face APR could be used! MUC= PF 50 X 5 = A full face APR could be used! MUC= PF 50 X 5 = 250250

Safety Issues/Problems with Use of Safety Issues/Problems with Use of RespiratorsRespirators

The use of Personal Protective Equipment (including a The use of Personal Protective Equipment (including a respirator) can respirator) can

itself create significant worker hazards such as:itself create significant worker hazards such as:

-Heat stress, -Heat stress, - Physical and psychological stress, - Physical and psychological stress, - Impaired vision, impaired mobility, and impaired - Impaired vision, impaired mobility, and impaired

communication. communication.

In general, greater levels of PPE can cause the associated risk In general, greater levels of PPE can cause the associated risk to increase.to increase.

The next couple of slides addresses specific problems with use The next couple of slides addresses specific problems with use of aof a

respirator. respirator.


Facial HairFacial Hair-- facial hair that lies along the sealing area of the facial hair that lies along the sealing area of the respirator respirator

such as beards, sideburns, or even a few days of growth of such as beards, sideburns, or even a few days of growth of stubble, stubble, shallshall

notnot be permitted because wit will prevent a good seal and may be permitted because wit will prevent a good seal and may causecause

leakage of the respirator, which could cause contaminants to leakage of the respirator, which could cause contaminants to enter yourenter your

breathing zone.breathing zone.

The use of a:The use of a:

==

Safety Issues/Problems with Use of Safety Issues/Problems with Use of RespiratorsRespiratorsPrescription Eye GlassesPrescription Eye Glasses:: Responders can not wear prescription Responders can not wear prescription

glasses with a full- face air purifying respirator or SCBA face piece. glasses with a full- face air purifying respirator or SCBA face piece. EyeEye

glasses with temple bars or straps that pass between the sealing glasses with temple bars or straps that pass between the sealing surface of a full face piece and can cause the mask to not fit tightly on surface of a full face piece and can cause the mask to not fit tightly on

thetheface. This will produce a break in the face to face piece seal and canface. This will produce a break in the face to face piece seal and cancause leakage and cause contaminants to enter your breathing zone.cause leakage and cause contaminants to enter your breathing zone.

Special inserts with corrective lenses can be placed inside a full-Special inserts with corrective lenses can be placed inside a full-facepiecefacepiece

respirator and are available from all manufactures of full-facepiecerespirator and are available from all manufactures of full-facepiecerespirators.respirators.

Eye glasses or goggles may interfere with half-face respirators. WhenEye glasses or goggles may interfere with half-face respirators. Wheninterference occurs, a full-facepiece with special corrective lenses interference occurs, a full-facepiece with special corrective lenses

shouldshouldbe provided and worn. be provided and worn.


Impaired VisionImpaired Vision: Peripheral vision is impaired when using most types: Peripheral vision is impaired when using most typesof full face respirators. Dependent on the type of respirator, you canof full face respirators. Dependent on the type of respirator, you canonly see a limited field of view. In addition, certain weather conditionsonly see a limited field of view. In addition, certain weather conditionssuch as high humidity and cold weather can fog the interior lens of thesuch as high humidity and cold weather can fog the interior lens of therespirator which can further impair vision. respirator which can further impair vision.

Impaired Situational AwarenessImpaired Situational Awareness:: With the respirator donned, you With the respirator donned, youmust be cognizant of the surrounding work environment such asmust be cognizant of the surrounding work environment such asdistance away from hazardous equipment, moving objects, potential slip,distance away from hazardous equipment, moving objects, potential slip,trips, and fall hazards, moving vehicles, etc.trips, and fall hazards, moving vehicles, etc.

Impaired CommunicationImpaired Communication:: Is much more difficult. Especially if Is much more difficult. Especially if using radios or talking to a buddy in PPE with background noise. using radios or talking to a buddy in PPE with background noise.

Safety Issues/Problems with Use of Safety Issues/Problems with Use of RespiratorsRespiratorsHeat StressHeat Stress: In the summer months, this is a major concern. Ensure: In the summer months, this is a major concern. Ensure

everyone is aware of the signs and symptoms of heat related injuries (e.g.everyone is aware of the signs and symptoms of heat related injuries (e.g.heat rash, heat exhaustion, & heat stroke). heat rash, heat exhaustion, & heat stroke).

In addition, a person working in high temperatures is under increased In addition, a person working in high temperatures is under increased levels oflevels of

stress. Wearing a respirator causes additional stress. A respirator thatstress. Wearing a respirator causes additional stress. A respirator thatprovides low breathing resistance is recommended under these conditions provides low breathing resistance is recommended under these conditions

(e.g.(e.g.supplied air respirator or powered-air purifying respirators). Such a supplied air respirator or powered-air purifying respirators). Such a

respiratorrespiratorused in low or high temperature atmospheres may be equipped with a used in low or high temperature atmospheres may be equipped with a

vortexvortextube to cool the air inspired. Also recommend drinking plenty of water tube to cool the air inspired. Also recommend drinking plenty of water

beforebeforeand during the response action. and during the response action.

Also heat stress is a major concern with the various levels of PPE used Also heat stress is a major concern with the various levels of PPE used during a during a

response. Cooling packs are recommended to help cool responders. They response. Cooling packs are recommended to help cool responders. They comecome

in different styles by safety manufacturers. in different styles by safety manufacturers.


FatigueFatigue: has both a physical and psychological effect. During major : has both a physical and psychological effect. During major response events, 1response events, 1stst Responders and support staff could be faced with Responders and support staff could be faced with

aawork schedule where routine meals or breaks are suddenly work schedule where routine meals or breaks are suddenly

interrupted. interrupted. Work conditions suddenly change from an office or training Work conditions suddenly change from an office or training

environment environment to real conditions.to real conditions.

Recommendations consist of adequate work/rest cycles; Use of theRecommendations consist of adequate work/rest cycles; Use of thebuddy system to identify signs of fatigue; and enforcement of buddy system to identify signs of fatigue; and enforcement of

operationaloperationalperiods and fatigue recommendations in the field.periods and fatigue recommendations in the field.

Selection of Filters and Chemical Selection of Filters and Chemical CartridgesCartridges

Filters Filters are an integral component used with negative and are an integral component used with negative and positivepositive

pressure air purifying respirators to remove solid or liquid pressure air purifying respirators to remove solid or liquid aerosols such asaerosols such as

dusts, mists, fibers, and metal fumes.dusts, mists, fibers, and metal fumes.

This type of element "filters" particulate matter by physically This type of element "filters" particulate matter by physically trapping it intrapping it in

the fibrous filter material. In addition, the wool-felt filters contain the fibrous filter material. In addition, the wool-felt filters contain anan

electrostatic charge that increases filter efficiency by electrostatic charge that increases filter efficiency by electrostaticallyelectrostatically

attracting the particles to the fibers. Although mechanical filters attracting the particles to the fibers. Although mechanical filters becomebecome

more efficient as they are used, they should be changed when more efficient as they are used, they should be changed when breathingbreathing

resistance becomes excessive.resistance becomes excessive.


Particulate filters have different classifications of filter efficiency Particulate filters have different classifications of filter efficiency based on based on

the testing procedures for protection against oil mist. the testing procedures for protection against oil mist.

P100 filter designation is the primary type of HEPA used for P100 filter designation is the primary type of HEPA used for protectionprotection

against dusts, mists, fumes, smokes (any particulates). It has beenagainst dusts, mists, fumes, smokes (any particulates). It has beentested for a 99.97% filter efficiency when tested against 0.3 um tested for a 99.97% filter efficiency when tested against 0.3 um

docytldocytlphthalate (DOP- “oil mist”) particles. phthalate (DOP- “oil mist”) particles.

P100 filters are color coded purple/magenta. P100 filters are color coded purple/magenta.


There are 9 classes of respirator particulate filters:There are 9 classes of respirator particulate filters:

3 Series Types 3 Series Types N = N = NNot oil resistantot oil resistant R = R = RResistant to oilesistant to oil

P = oil P = oil PProofroof

3 Efficiency Percentages3 Efficiency Percentages 95 % efficient95 % efficient 99 % efficient99 % efficient

100 % efficient100 % efficient

Filter Classifications can be any combination of the listed SeriesFilter Classifications can be any combination of the listed Seriesand Efficiencyand Efficiency(e.g.. N-95, N-pp, N-100, R-95, R-99, R-100, P-95, P-99, P100)(e.g.. N-95, N-pp, N-100, R-95, R-99, R-100, P-95, P-99, P100)


Canister or Cartridge Canister or Cartridge is a container with a filter, sorbent, or is a container with a filter, sorbent, or catalyst, or combination of these items, which removes specificcatalyst, or combination of these items, which removes specificcontaminants from the air passed through the container. Theycontaminants from the air passed through the container. Theydiffer from aerosol filters in that they use sorbents, generallydiffer from aerosol filters in that they use sorbents, generallycarbon to remove harmful gasses and vapors. carbon to remove harmful gasses and vapors.

Selection of Filters and Chemical Selection of Filters and Chemical Cartridges Cartridges

To make it easier for the user to identify respirator cartridges andTo make it easier for the user to identify respirator cartridges andfilters, they have designated colors. The color is based on the typefilters, they have designated colors. The color is based on the typeof air contaminant (s) which the user will be wearing the respirator of air contaminant (s) which the user will be wearing the respirator for protection against. Examples of filter and cartridge colors andfor protection against. Examples of filter and cartridge colors andassociated contaminant type include:associated contaminant type include:

Acid gasses – White Organic vapors- Black Ammonia gas- Green Acid gasses and organic vapors- Yellow P100 & HEPA filters- Purple/magenta Mercury Vapor- Orange

Selection ofSelection of Filters and Chemical Filters and Chemical CartridgesCartridges

The service life of the chemical cartridge variesThe service life of the chemical cartridge variesbased on variables including:based on variables including:

-Chemical weight (carbon and molecular weight) of -Chemical weight (carbon and molecular weight) of thethe

vapor, vapor,

-The cartridge media-The cartridge media

-The concentration of vapor in the atmosphere, -The concentration of vapor in the atmosphere,

-The relative humidity of the atmosphere, -The relative humidity of the atmosphere,

-The breathing rate of the respirator wearer.-The breathing rate of the respirator wearer.


It is important to implement a It is important to implement a Chemical Cartridge Change Out Chemical Cartridge Change Out ScheduleSchedule. The change schedule described in the plan for canister. The change schedule described in the plan for canisterand cartridges must be based on objective information or dataand cartridges must be based on objective information or data(e.g. industrial hygiene air monitoring data) that will ensure that(e.g. industrial hygiene air monitoring data) that will ensure thatcanisters or cartridges are changed canisters or cartridges are changed before their before their end of service end of service

lifelife. .

This will help prevent “break-through” of the chemical cartridgeThis will help prevent “break-through” of the chemical cartridgeand will prevent the wearer from being exposed to airand will prevent the wearer from being exposed to aircontaminants as a result of overuse of a saturated chemicalcontaminants as a result of overuse of a saturated chemicalcartridge.cartridge.

If uncertain about the length of useIf uncertain about the length of use, recommend disposing of the, recommend disposing of thechemical cartridges after the response action or the work shift andchemical cartridges after the response action or the work shift andobtain new ones. obtain new ones.


When using a respirator for protection for gasses andWhen using a respirator for protection for gasses andvapors, if you detect a chemical taste, smell, or irritation, youvapors, if you detect a chemical taste, smell, or irritation, youshould exit to a clean area and replace the cartridges and should exit to a clean area and replace the cartridges and

inspectinspectthe respirator immediately. the respirator immediately.

Additional assistance in determining chemical cartridge Additional assistance in determining chemical cartridge changechange

schedules can be found under the Workplace schedules can be found under the Workplace Safety/Respiratory Safety/Respiratory

ProtectionProtection Section of our website at:Section of our website at: http://www.ehs.unc.edu/workplacehttp://www.ehs.unc.edu/workplace

If uncertain about the length of useIf uncertain about the length of use, recommend disposing of , recommend disposing of thethe

chemical cartridges after the response action or the work chemical cartridges after the response action or the work shift andshift and

obtain new ones. obtain new ones.

Selection of Filters and Chemical Cartridges

What type of filter or cartridge is the below?What type of filter or cartridge is the below?

Types of RespiratorsTypes of RespiratorsReview of the Characteristics of Specific Types of RespiratorsReview of the Characteristics of Specific Types of Respirators

Category and Type of Respirator

NIOSH Protection

Factor

Use for Unknown Exposures and

Concentrations?

Specific Cartridge(s) Needed?

Required Maintenance

Level

Interfereswith

Eyeglasses?

Can be worn by persons

withFacial hair?

Air-Supplying:Positive Pressure, Self Contained Breathing Apparatus

10,000 Yes No High Yes No

Air-Supplying:Supplied air (air line) 10-2000 No No High Yes

Yes (with loose fitting hood only)

Air-Purifying:Powered, Tight-fitting hood

Powered, Loose-fitting hood

50- 1,000

25 No

No

Yes

Yes

High

High

Yes

No

No

Yes

Air-Purifying:Full-face piece 50 No Yes Moderate Yes No

Air-Purifying:Half-face piece 10 No Yes Moderate Maybe No

Air-Purifying:Filtering face piece, Disposable (e.g. N95)

10 No No Low Maybe No

Medical EvaluationMedical EvaluationUsing a respirator may place a physiological burden, which variesUsing a respirator may place a physiological burden, which varieswith type of respirator worn, the job and workplace conditions inwith type of respirator worn, the job and workplace conditions inwhich the respirator is used, and the medical status of thewhich the respirator is used, and the medical status of theemployee. Potential negative physical demands of wearing aemployee. Potential negative physical demands of wearing arespirator include:respirator include:

Extra strain on the heartExtra strain on the heart Increased body temperatureIncreased body temperature Heat StressHeat Stress DehydrationDehydration Other ill health effectsOther ill health effects

Each employee assigned to wear a respirator in carrying out Each employee assigned to wear a respirator in carrying out his/herhis/her

job responsibilities is to receive a medical evaluation to determinejob responsibilities is to receive a medical evaluation to determinehis/her ability to wear a respirator. The medical evaluation musthis/her ability to wear a respirator. The medical evaluation mustbe performed to determine the employee’s ability to use a be performed to determine the employee’s ability to use a respirator, respirator, before fit testing and use.before fit testing and use.

Inspection ProceduresInspection ProceduresAll respirators used in routine situations are to be All respirators used in routine situations are to be

inspected beforeinspected beforeand after each use and during cleaning. Before donning and after each use and during cleaning. Before donning

and usingand usingthe respirator check for any malfunctions such as: the respirator check for any malfunctions such as:

Broken/loose connectorsBroken/loose connectors ReceptaclesReceptacles Cracked distorted facepiecesCracked distorted facepieces Deformed valvesDeformed valves Unclean respiratorsUnclean respirators Check that you have the correct filter/cartridge and Check that you have the correct filter/cartridge and

that the service life has not been exceeded. that the service life has not been exceeded. If something is damaged or worn, get a replacement If something is damaged or worn, get a replacement

part before using it.part before using it.

Respirator InspectionRespirator InspectionDonning the respirator: There are general steps you take withDonning the respirator: There are general steps you take withany respirator-try different respirator sizes until you are sure of any respirator-try different respirator sizes until you are sure of fit and comfort. For example, if a half-mask respirator does notfit and comfort. For example, if a half-mask respirator does notfit, you may have to wear a full face respirator.fit, you may have to wear a full face respirator.

Steps: Place chin in the respirator, pull it over your head,Steps: Place chin in the respirator, pull it over your head,tighten straps, check for tight seal.tighten straps, check for tight seal.

Always perform a positive and negative pressure user seal Always perform a positive and negative pressure user seal check to ensure a good seal (explained in more detail in thecheck to ensure a good seal (explained in more detail in thefollowing slides).following slides).

Respirators that fail an inspection or are found to be defectiveRespirators that fail an inspection or are found to be defectiveare to be removed from service, and either discarded, repaired,are to be removed from service, and either discarded, repaired,or adjusted. Repairs or adjustments are to be made by personsor adjusted. Repairs or adjustments are to be made by personsappropriately trained.appropriately trained.

Respirator InspectionRespirator Inspection Each individual who uses a tight-fitting respirator is to Each individual who uses a tight-fitting respirator is to

performperforma user seal check to ensure that an adequate seal is achieveda user seal check to ensure that an adequate seal is achievedeach time the respirator is put on. This can be achieved byeach time the respirator is put on. This can be achieved byperforming a performing a positivepositive and and negativenegative pressure check. pressure check.

Positive Pressure Check Negative Pressure Positive Pressure Check Negative Pressure CheckCheck

http://images.google.com/imgres?imgurl=keats.admin.virginia.edu/images/os_positive_fit_test.jpg&imgrefurl=http://keats.admin.virginia.edu/os/resp.html&h=386&w=399&prev=/images%3Fq%3Dpositive%2Bfit%2Bcheck%26svnum%3D10%26hl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26sa%3DN

http://keats.admin.virginia.edu/images/os_negative_fit_test.jpg

Respirator InspectionRespirator InspectionNegative Pressure Check:Negative Pressure Check: Close off the inlet opening of theClose off the inlet opening of thecanister or cartridges by covering with the palm of the hand orcanister or cartridges by covering with the palm of the hand orby replacing the filter seal, inhale gently so that the face pieceby replacing the filter seal, inhale gently so that the face piececollapses slightly, and hold the breath for ten seconds. Thiscollapses slightly, and hold the breath for ten seconds. Thistest can be performed by covering the inlet opening of thetest can be performed by covering the inlet opening of thecartridge with a thin latex or nitrile glove. If the face piececartridge with a thin latex or nitrile glove. If the face pieceremains in its slightly collapsed condition and no inwardremains in its slightly collapsed condition and no inwardleakage of air is detected, the tightness of the respirator isleakage of air is detected, the tightness of the respirator isconsidered satisfactory. considered satisfactory.

Respirator InspectionRespirator InspectionPositive Pressure CheckPositive Pressure Check: : Close off the exhalation valve Close off the exhalation valve

(place(placepalm of your hand over exhalation valve) and exhale gently palm of your hand over exhalation valve) and exhale gently

into theinto theface piece. The face fit is considered satisfactory if a slight face piece. The face fit is considered satisfactory if a slight

positivepositivepressure can be built up inside the face piece without any pressure can be built up inside the face piece without any

evidence ofevidence ofoutward leakage of air at the seal.outward leakage of air at the seal.

Fit-Test Procedures Fit-Test Procedures Employees at UNC-CH are required to receive a quantitative fit testEmployees at UNC-CH are required to receive a quantitative fit testwith the respirator that they will be using. The fit-testing will occurwith the respirator that they will be using. The fit-testing will occurprior to initial use of the respirator, or whenever a different respiratorprior to initial use of the respirator, or whenever a different respiratorface piece (size, style, model, or make) is used, and at least annuallyface piece (size, style, model, or make) is used, and at least annuallythereafter.thereafter.

An additional fit-test is conducted An additional fit-test is conducted annually annually thereafter and wheneverthereafter and wheneverthe employee, supervisor, the Environment, Health, and Safety Office,the employee, supervisor, the Environment, Health, and Safety Office,or the UEOHC makes visual observations of changes in the employee’sor the UEOHC makes visual observations of changes in the employee’sphysical condition that could affect respirator fit.physical condition that could affect respirator fit. Such conditions include, but are not limited to, facial scarring, dental Such conditions include, but are not limited to, facial scarring, dental changes, cosmetic surgery, or any obvious change in body weight. changes, cosmetic surgery, or any obvious change in body weight.

TheTheemployee may select a different respirator if he/she does not think theemployee may select a different respirator if he/she does not think therespirator fit is acceptable, even after passing the test. respirator fit is acceptable, even after passing the test.

Fit-Test Procedures Fit-Test Procedures Quantitative fit testing is an assessment of the adequacy ofQuantitative fit testing is an assessment of the adequacy ofrespirator fit by numerically measuring the amount of leakagerespirator fit by numerically measuring the amount of leakageinto the respirator. Testing is accomplished by modifying the into the respirator. Testing is accomplished by modifying the face piece to allow sampling inside the face piece in theface piece to allow sampling inside the face piece in thebreathing zone of the user, midway between the nose andbreathing zone of the user, midway between the nose andmouth. This requirement is accomplished by using a sampling mouth. This requirement is accomplished by using a sampling adapter designed to temporarily provide a means of sampling adapter designed to temporarily provide a means of sampling air from inside the face piece.air from inside the face piece.

Fit-Test Procedures Fit-Test Procedures A quantitative fit-test determines a fit-factor for the employee based on the type ofA quantitative fit-test determines a fit-factor for the employee based on the type ofthe respirator used. A fit-factor is a quantitative estimate of the fit of a particularthe respirator used. A fit-factor is a quantitative estimate of the fit of a particularrespirator to a specific individual, and estimates the ratio:respirator to a specific individual, and estimates the ratio:

Fit FactorFit Factor = = Concentration of particles in the ambient airConcentration of particles in the ambient air Concentration of particles inside the respirator when wornConcentration of particles inside the respirator when worn

• Fit Factor Range: 1 to greater that 10,000Fit Factor Range: 1 to greater that 10,000• Particle Size Range: 0.02 to greater than 1.0 micrometerParticle Size Range: 0.02 to greater than 1.0 micrometer

Required Fit-FactorRequired Fit-Factor Type of RespiratorType of Respirator

100100 Half-face APR & N95 respiratorHalf-face APR & N95 respirator

500500 Full Face APRFull Face APR

10001000 North 76008A Series Full Face North 76008A Series Full Face APRAPR

Maintenance & Storage RequirementsMaintenance & Storage RequirementsAll respirators are to be stored to protect them from damage,All respirators are to be stored to protect them from damage,contamination, dust, sunlight, extreme temperatures, excessivecontamination, dust, sunlight, extreme temperatures, excessivemoisture, and damaging chemicals. They are to be packed ormoisture, and damaging chemicals. They are to be packed orstored to prevent deformation of the face piece and exhalationstored to prevent deformation of the face piece and exhalationvalve. valve.

Store respirators in a sealed plastic bag in a clean and Store respirators in a sealed plastic bag in a clean and preferably preferably

cool area such as a storage cabinet or locker.cool area such as a storage cabinet or locker.

Emergency use respirators are to be kept accessible to the workEmergency use respirators are to be kept accessible to the workarea; and stored in compartments or in covers that are clearly area; and stored in compartments or in covers that are clearly marked as containing emergency respirators; and stored inmarked as containing emergency respirators; and stored inaccordance with any applicable manufacturer instructions.accordance with any applicable manufacturer instructions.

Maintenance and Storage RequirementsMaintenance and Storage RequirementsMaintenance and Care of RespiratorsMaintenance and Care of Respirators: Employees are to be: Employees are to beprovided with respirators that are clean, sanitary, and in goodprovided with respirators that are clean, sanitary, and in goodworking order. Respirators are to be cleaned and disinfected usingworking order. Respirators are to be cleaned and disinfected usingprocedures recommended by the respirator manufacturer. Review procedures recommended by the respirator manufacturer. Review

thetherespirator instruction manual for specific procedures for cleaning respirator instruction manual for specific procedures for cleaning

andanddisinfecting the respirator.disinfecting the respirator.

Respirators are to be cleaned and disinfected at the followingRespirators are to be cleaned and disinfected at the followingintervals: intervals: -As often as necessary to be maintained in a sanitary condition;-As often as necessary to be maintained in a sanitary condition;-Generally after each use-Generally after each use-If the respirator is shared among employees it must be disinfected -If the respirator is shared among employees it must be disinfected and cleaned after each use. and cleaned after each use.

ReviewReview

Respiratory Protection- ReviewRespiratory Protection- Review UNC-CH has established rules about hazardous atmospheres UNC-CH has established rules about hazardous atmospheres

to protect you at work?to protect you at work? True or FalseTrue or False

You are required to perform and positive and negative You are required to perform and positive and negative pressure check every time you don an air purifying pressure check every time you don an air purifying respirator?respirator? True or FalseTrue or False

The type of hazards you are exposed to determines the The type of hazards you are exposed to determines the respirator selection process?respirator selection process? True or False.True or False.

Which of the following is NOT a method of engineering Which of the following is NOT a method of engineering control for airborne contaminants?control for airborne contaminants? Respirators.Respirators. Substitution.Substitution. Local Exhaust VentilationLocal Exhaust Ventilation

Respiratory Protection- ReviewRespiratory Protection- Review The two primary classifications of respirators are called?The two primary classifications of respirators are called?

Air-PurifyingAir-Purifying Atmosphere Supplying Atmosphere Supplying

A P100 filter is what kind of filter and what color code is A P100 filter is what kind of filter and what color code is it?it? High efficiency particulate air/purple-magenta High efficiency particulate air/purple-magenta

An organic vapor chemical cartridge (color coded black) An organic vapor chemical cartridge (color coded black) can be used for what work operations?can be used for what work operations? Paint and solvent vapors when there is a potential vapor Paint and solvent vapors when there is a potential vapor

exposure hazardexposure hazard

What type of maintenance should you perform on PPE?What type of maintenance should you perform on PPE? Inspect it.Inspect it. Proper storage.Proper storage. Clean it.Clean it.

Any questions regarding UNC-CH Respiratory Protection Program, please call:

Workplace SafetyWorkplace Safety

Phone: Phone: 919.962.5507919.962.5507

Web: Web: www.ehs.unc.edu1120 Estes Drive Ext.1120 Estes Drive Ext.

Campus BoxCampus Box 1650 1650

Chapel Hill, NC, Chapel Hill, NC, 2759927599

http://www.ehs.unc.edu/

unc emergency responder respirator

Education