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Control Measures and Equipment. Tour Lab Chemical Hygiene Plan, p. 9 NIOSH (http:// www.cdc.gov/niosh/topics/respirators). January 17, 2012. Respirators.
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Control Measures and Equipment Tour Lab Chemical Hygiene Plan, p. 9 NIOSH (http://www.cdc.gov/niosh/topics/respirators) January 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
Respirators Particulate respirators • Simplest, least expensive, least protective • Only protect against particles • N-95 is most common, used in hospitals to protect against infection agents
Respirators • Chemical Cartridge/Gas Mask respirators • Also known as "air-purifying respirators" • Includes a facepiece or mask, and a filter/cartridge