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  2. Surgical mask - Wikipedia

    en.wikipedia.org/wiki/Surgical_mask

    A surgical mask serves as a mechanical barrier that interferes with direct airflow in and out of respiratory orifices (i.e. nose and mouth).Most commonly used surgical masks are designed to only trap respiratory droplets, and therefore do not filter or block fine airborne particles that are smaller than the designed filtration ratings, which may be transmitted by coughs, sneezes, unintentional ...

  3. N95 respirator - Wikipedia

    en.wikipedia.org/wiki/N95_respirator

    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.

  4. Elastomeric respirator - Wikipedia

    en.wikipedia.org/wiki/Elastomeric_respirator

    During the COVID-19 pandemic, masks with unfiltered-exhalation valves ran counter to the requirements of some mandatory mask orders. [60] [61] Despite the aforementioned belief, a 2020 research by the NIOSH and CDC shows that an uncovered exhalation valve already provides source control on a level similar to, or even better than, surgical masks.

  5. Stock up on KN95s after the updated CDC guidelines: These FDA ...

    www.aol.com/lifestyle/stock-kn95s-updated-cdc...

    Stock up on KN95s after the updated CDC guidelines: These FDA-approved masks are on sale for $1 a pop at Amazon. Devon Kelley,Izabella Zaydenberg. July 30, 2021 at 3:23 PM.

  6. ResMed says its masks to remain on market despite FDA ... - AOL

    www.aol.com/news/resmed-says-masks-remain-market...

    The California-based medical device maker, which started the recall process on Nov. 20, said the classification was due to a correction in the labeling and is not a product removal. The FDA ...

  7. Respirator - Wikipedia

    en.wikipedia.org/wiki/Respirator

    Respirators used in healthcare are traditionally a specific variant called a surgical respirator, which is both approved by NIOSH as a respirator and cleared by the Food and Drug Administration as a medical device similar to a surgical mask. [51] These may also be labeled "Surgical N95", "medical respirators", or "healthcare respirators". [52]

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