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NIOSH air filtration rating - Wikipedia

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 dust and liquid droplets in the air. The certification and approval process for respiratory protective devices is ... A filtering facepiece N95 dust mask.

COVID-19 guide to face masks and filtering facepiece respirators

FDA definitions of face masks, filter facepiece respirators and surgical respirators ... A mask that covers the user's nose and mouth. ... NIOSH-approved N95 respirators are tested and certified as meeting the standards established in 42 CFR 84 ...

NIOSH-Approved N95 Particulate Filtering Facepiece ... - CDC

There are some products that are approved by NIOSH as an N95 respirator and also cleared by the Food and Drug Administration (FDA) as a surgical mask.

NIOSH Publications and Products - NIOSH Guide to the ... - CDC

NIOSH, National Institute for Occupational Safety and Health ... Some of the particulate filter certification tests dated from Bureau of Mines procedures ... For example, if the commonly accepted APF for a half-mask respirator is 10 and the PEL is ...

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