control measures and equipment
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Tour Lab Chemical Hygiene Plan, p. 9NIOSH (http://www.cdc.gov/niosh/topics/respirators)
CONTROL MEASURES AND EQUIPMENTJANUARY 17, 2012
RESPIRATORS• Respirators should be worn employees might be
exposed to vapor or particulate concentrations greater than the PEL, TLV, or similar limit.
• Work with toxic chemicals that have low air concentration limits, or that have high vapor pressures, should always be done in a hood
• Simplest, least expensive, least protective• Only protect against particles• N-95 is most common, used in hospitals to
protect against infection agents
RESPIRATORSParticulate respirators
Chemical Cartridge/Gas Mask respirators• Also known as "air-purifying respirators" • Includes a facepiece or mask, and a
filter/cartridge
RESPIRATORS
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