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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 mass median aerodynamic diameter of 0.3 micrometers under 42 CFR 84, effective July 10, 1995.
Best N95 Surgical Mask: Honeywell Surgical N95 Respirator. Most Breathable N95 Mask: BNX N95 Mask. Best-Fitting N95 Mask: Benehal N95 Mask. Best N95 Protective Mask: 3M 8210 Particular Respirator ...
In 1848, the first US patent for an air-purifying respirator was granted to Lewis P. Haslett [5] for his 'Haslett's Lung Protector,' which filtered dust from the air using one-way clapper valves and a filter made of moistened wool or a similar porous substance. [6] Hutson Hurd patented a cup-shaped mask in 1879 which became widespread in ...
According to 3M, respirators made according to the following standards are equivalent to US N95 or European FFP2 respirators "for filtering non-oil-based particles such as those resulting from wildfires, PM 2.5 air pollution, volcanic eruptions, or bioaerosols (e.g. viruses)": [40] Chinese KN95 (GB2626-2006): similar to US.
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Other respirators may be used for making repairs to leaking equipment. [51] Elastomeric respirators may be worn in agriculture, [5]: fig.2–4 for instance when using agricultural chemicals, solvents, fish meal, silage, mold spores and dust. [52] Manufacturing also uses elastomeric respirators, [5]: fig.2–4 for instance on assembly lines. [5]:
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