NIOSH publishes guide to air-purifying respirators

Publication details four types of respirators

Posted September 6, 2018

The National Institute for Occupational Safety and Health (NIOSH) released a guide to air-purifying respirators that describes filtering facepiece respirators, elastomeric half- and full-facepiece respirators, and powered air-purifying respirators.

Air-purifying respirators remove gases, vapors, aerosols (airborne droplets and solid particles), or a combination of contaminants from the air through the use of filters, cartridges, or canisters. NIOSH notes that these respirators do not supply oxygen from other than the working atmosphere, and cannot be used in an atmosphere that is oxygen-deficient or immediately dangerous to life or health.


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