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Particulate respirator that meets the N95 standard of the United States National Institute for Occupational Safety and Health
An N95 respirator is a filtering facepiece respirator or elastomeric filter that meets the U.S. National Institute for Occupational Safety and Health (NIOSH) N95 classification of air filtration, meaning that it filters at least 95% of airborne particles that have a mass median aerodynamic diameter of 0.3 micrometers under 42 CFR Part 84, effective July 10, 1995. This standard does not require tha... Wikipedia