![Page 1: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/1.jpg)
HEARING CONSERVATION
HEARING CONSERVATION
![Page 2: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/2.jpg)
Hearing LossHearing Loss Can you imagine not being
able to:– Hear music?– Listen to the sounds of
nature?– Socialize with your family?
Can you imagine being afflicted with uncomfortable ringing or abnormal sounds that interfere with sleep?
![Page 3: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/3.jpg)
The Impact Of Noise The Impact Of Noise
Interferes with communication
Causes fatigue Distracting or irritating Reduces morale
or efficiency
![Page 4: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/4.jpg)
Anatomy Of The EarAnatomy Of The Ear
![Page 5: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/5.jpg)
The Outer EarThe Outer Ear
![Page 6: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/6.jpg)
The Middle EarThe Middle Ear
![Page 7: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/7.jpg)
The Inner EarThe Inner Ear
![Page 8: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/8.jpg)
Several animals can hear sounds of much higher frequency, which is why humans do not hear special whistles that may be heard by dogs.
Sounds vary not only in frequency, but also in intensity.
SoundsSounds
![Page 9: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/9.jpg)
The measure of sound pressure
The decibel is a relative measure
5 dBA exchange rate
DecibelDecibel
![Page 10: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/10.jpg)
16
86
4 3 2 1.5 1 .5 .25
85 90 92 95 97 100 102 105 110 115
Permissible Noise Exposure
Permissible Noise Exposure
![Page 11: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/11.jpg)
3030
WhisperWhisper90 dB90 dB
![Page 12: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/12.jpg)
6060
TalkingTalking90 dB90 dB
![Page 13: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/13.jpg)
8080
TrafficTraffic90 dB90 dB
![Page 14: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/14.jpg)
8585
HaulTruckHaul
Truck 90 dB90 dB
![Page 15: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/15.jpg)
8686
LoaderLoader90 dB90 dB
![Page 16: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/16.jpg)
9191
LawnMowerLawn
Mower 90 dB90 dB
![Page 17: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/17.jpg)
103103
ImpactWrenchImpactWrench 90 dB90 dB
![Page 18: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/18.jpg)
105105
DozerDozer90 dB90 dB
![Page 19: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/19.jpg)
109109
ScreensScreens90 dB90 dB
![Page 20: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/20.jpg)
110110
ChainSaw
ChainSaw 90 dB90 dB
![Page 21: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/21.jpg)
120120
RockConcert
RockConcert 90 dB90 dB
![Page 22: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/22.jpg)
125125
MetalBanging
MetalBanging 90 dB90 dB
![Page 23: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/23.jpg)
140140
JetAirplane
JetAirplane 90 dB90 dB
Threshold of pain
![Page 24: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/24.jpg)
165165
12-GaugeShotgun12-GaugeShotgun 90 dB90 dB
![Page 25: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/25.jpg)
NIOSH estimates that 30 million workers are exposed to hazardous noise levels
At present exposure limits, one in four workers will develop permanent hearing loss
Hearing ExposureHearing Exposure
![Page 26: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/26.jpg)
Two Categories of hearing
Loss:
Hearing ExposureHearing Exposure
Temporary Permanent
![Page 27: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/27.jpg)
![Page 28: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/28.jpg)
Wax build up Measles / Otosclerosis Aging Head injury Drugs / Medicine Chemicals Heredity
Hearing Loss CausesHearing Loss Causes
![Page 29: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/29.jpg)
Fail to catch words
Ears ringing Shouting
without realizing
Trouble understanding high frequency sounds in speech
Signs of Hearing LossSigns of Hearing Loss
![Page 30: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/30.jpg)
Demonstration of Hearing Loss
Demonstration of Hearing Loss
Sound tracks of a male voice, with no background noise
– Normal– Loss of 25 dB– Loss of 40 dB– Loss of 60 dB– Normal
![Page 31: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/31.jpg)
Action Level 85 dB - Must inform employees & enroll them in a hearing conservation program
Permissible Exposure Level 90 dB - Must enroll employee in a hearing conservation program, use all controls to reduce exposure, must wear hearing protection
Dual Protection Level 105 dB - Must wear both plugs and earmuffs
Noise StandardNoise Standard
![Page 32: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/32.jpg)
Engineering Controls– Eliminate or reduce the noise
at the source– Interrupting the noise path– Reducing reverberation
Administrative Controls– Change in work schedule– Quiet areas for breaks– Job rotation
Eliminating NoiseEliminating Noise
![Page 33: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/33.jpg)
Monitoring system Hearing protection Audiometric testing Training Recordkeeping
Hearing Conservation Program
Hearing Conservation Program
![Page 34: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/34.jpg)
AudiogramsAudiograms
Audiometric testing offered
Qualified medical provider
Baseline tests Annual testing
![Page 35: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/35.jpg)
Standard Threshold ShiftStandard Threshold Shift Hearing changed
by 10 db average Employee
notification within 21 days
Revised hearing protection required
Further medical evaluation
![Page 36: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/36.jpg)
Dosimeter
Sound Level Meter
MonitoringMonitoring
![Page 37: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/37.jpg)
Listed on the package How many decibels are blocked OSHA subtracts the NRR by 50% NIOSH subtracts the NRR by 25%
for earmuffs, 50% for formable plugs, and 70% for all other plugs
Noise Reduction Rating (NRR)
Noise Reduction Rating (NRR)
![Page 38: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/38.jpg)
Reusable and Headband Plugs– 25 to 35 dB NRR
– Preformed to fit ear
– Flexible rubber
– Inspect and clean
– Replace when hard or damaged
Hearing ProtectionHearing Protection
![Page 39: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/39.jpg)
Disposable Plugs– 25 to 35 dB NRR– Expandable foam– One size fits all– Insert with clean
hands– If damaged or dirty
throw them away
Hearing ProtectionHearing Protection
![Page 40: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/40.jpg)
Inserting PlugsInserting Plugs
![Page 41: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/41.jpg)
Earmuffs– 22 to 29 dB NRR– Foam filled cushions– Hard to get good
seal– Works well with
plugs– Replace when stiff or
worn
Hearing ProtectionHearing Protection
![Page 42: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/42.jpg)
Advantages Disadvantages
Ear Plugs Good NRR. Hard to wear.Get dirty.
Ear Muffs Easy to wear.Fits everyone.
Fair NRR.Expensive.Easily broken.
Plugs vs. EarmuffsPlugs vs. Earmuffs
![Page 43: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/43.jpg)
Prolonged noise exposure causes permanent hearing loss
Hearing loss is preventable, so wear your hearing protection!
ConclusionConclusion
![Page 44: HEARING CONSERVATION Hearing Loss n Can you imagine not being able to: –Hear music? –Listen to the sounds of nature? –Socialize with your family? n Can](https://reader035.vdocuments.mx/reader035/viewer/2022062422/56649ef55503460f94c09200/html5/thumbnails/44.jpg)
Wear this now...
Or wear this later!
It’s Really Pretty Simple…..
It’s Really Pretty Simple…..