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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.
The European respirator standards refer to the filtering classification by EN 149, EN 14683, and EN 143, all European standards of testing and marking requirements for respirators. [1] FFP standard masks (where FFP stands for filtering facepiece) [ 2 ] cover the nose, mouth and chin and may have inhalation and/or exhalation valves.
ND respirator, Nuisance dust respirator, Nuisance dust mask [ edit on Wikidata ] A dust mask is a flexible paper pad held over the nose and mouth made for protection against chronically toxic nuisance dusts , like from occupational exposure to plant dusts like hay . [ 1 ]
Air-purifying respirators range from relatively inexpensive, single-use, disposable face masks, known as filtering facepiece respirators, reusable models with replaceable cartridges called elastomeric respirators, to powered air-purifying respirators (PAPR), which use a pump or fan to constantly move air through a filter and supply purified air ...
Limited research suggests that elastomeric respirators may have better fitting characteristics than disposable filtering-facepiece respirators, fitting a broader variety of faces, and thus being more likely to seal well when the user has not done a formal fit test. Available evidence also suggests that as a class, elastomeric respirators may ...
It’s why adding disposable masks — made of materials including polypropylene, which break into micro-sized plastic fibers and can take up to 450 years to decompose — to the already ...
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