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The NIOSH air filtration ratings update with the enactment of 42 CFR 84, previously published in the Federal Register. The new regulation includes rules governing the new N95 respirator standard.
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NIOSH air filtration rating
U.S. rating of respirators
The NIOSH air filtration rating is the U.S. National Institute for Occupational Safety and Health (NIOSH)'s classification of filtering respirators. The ratings describe the ability of the device to protect the wearer from solid and liquid particulates in the air. The…Source: Wikipedia (CC BY-SA)
Federal Register
Official journal of the US federal government
The Federal Register is the official journal of the federal government of the United States that contains government agency rules, proposed rules, and public notices. It is published every weekday, except on federal holidays. The final rules promulgated by a federal agency and…Source: Wikipedia (CC BY-SA)
N95 respirator
Particulate respirator meeting the N95 standard
An N95 respirator is a disposable filtering facepiece respirator or reusable elastomeric respirator filter that meets the U.S. National Institute for Occupational Safety and Health (NIOSH) N95 standard of air filtration, filtering at least 95% of airborne particles that have a…Source: Wikipedia (CC BY-SA)
July 10
Day of the year
July 10 is the 191st day of the year in the Gregorian calendar; 174 days remain until the end of the year.Source: Wikipedia (CC BY-SA)