N95 mask
N95 mask
An N95 mask or N95 respirator is a particulate-filtering facepiece respirator 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.
Pronunciation
/ˌɛnˈnaɪnˈfaɪv ˈmæsk/
Etymology
The term "N95" comes from the NIOSH's air filtration rating. The "N" stands for "Not resistant to oil," and the "95" means that it filters out 95% of particles .3 microns or larger.
Usage
N95 masks are commonly used in healthcare and construction industries for protection against airborne particles, including bacteria and viruses. During the COVID-19 pandemic, the use of N95 masks became widespread among the general public as well.
Related terms
See also
References
External links
- Medical encyclopedia article on N95 mask
- Wikipedia's article - N95 mask
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