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2. 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.

3. NIOSH air filtration rating - Wikipedia

   en.wikipedia.org/wiki/NIOSH_air_filtration_rating

   During the COVID-19 pandemic, the mask and respirator market rapidly grew, along with counterfeit respirators. [1] NIOSH, on behalf of the Department of Health and Human Services, filed a trademark application on June 17, 2020, for various 42 CFR 84 trademarks, including the N95, allowing NIOSH to enforce rules on counterfeit masks outside of rules defined in 42 CFR 84.

4. Counterfeit N95s are out there: How to avoid getting duped - AOL

   www.aol.com/lifestyle/counterfeit-n95s-avoid...

   These masks are authorized by the FDA under the name of the manufacturer, Guangzhou Powecom. The masks have a classic KN95 style and flexible elastic ear loops. An adjustable metal nose bridge ...

5. Respirator - Wikipedia

   en.wikipedia.org/wiki/Respirator

   A surgical mask is a loosely-placed, unsealed barrier, meant to stop droplets, and other liquid-borne particles from the mouth and nose that may contain pathogens. [48] A surgical mask may not block all particles, due to the lack of fit between the surface of the face mask and the face. [48]

6. CDC updates mask guidance, says N95s offer 'highest protection'

   www.aol.com/news/cdc-updates-mask-guidance-says...

   CDC mask recommendations updated today with information on N95 masks and KN95 masks. The new mask guidance also says some masks provide more protection than others.

7. Here's the right way to wear a non-surgical mask - AOL

   www.aol.com/news/heres-the-right-way-to-wear-a...

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8. Cloth face mask - Wikipedia

   en.wikipedia.org/wiki/Cloth_face_mask

   A cloth face mask is a mask made of common textiles, usually cotton, worn over the mouth and nose.When more effective masks are not available, and when physical distancing is impossible, cloth face masks are recommended by public health agencies for disease "source control" in epidemic situations to protect others from virus laden droplets in infected mask wearers' breath, coughs, and sneezes.

9. Non-rebreather mask - Wikipedia

   en.wikipedia.org/wiki/Non-rebreather_mask

   Non-rebreather mask covering a woman's nose and mouth. The non-rebreather mask covers both the nose and mouth of the patient and attaches with the use of an elastic cord around the patient's head. The NRB has an attached reservoir bag, typically one liter, that connects to an external oxygen tank or bulk oxygen supply system.