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2. 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.

3. Mechanical filter (respirator) - Wikipedia

   en.wikipedia.org/wiki/Mechanical_filter_(respirator)

   Filtering facepieces are typically simple, light, single-piece, half-face masks and employ the first three mechanical filter mechanisms in the list above to remove particulates from the air stream. The most common of these is the white, disposable standard N95 variety; another type is the Surgical N95 mask. It is discarded after single use or ...

4. Elastomeric respirator - Wikipedia

   en.wikipedia.org/wiki/Elastomeric_respirator

   This full-face mask also protects the eyes, and has an inner orinasal mask to reduce dead space. Pink hard-case P100 particulate filter cartridges make their presence or absence conspicuous at a distance. Elastomeric respirators are examples of air-filtering respirators, in contrast to air-supplying respirators.

5. N95 Masks vs. KN95 Masks: Which Work Best to Protect ... - AOL

   www.aol.com/n95-masks-vs-kn95-masks-161012369.html

   Though mask restrictions are easing across the country (and around the world), officials say you shouldn’t be taking off your masks just yet, especially if you’re in crowded places or starting ...

6. These KN95 and N95 Face Masks Help Protect Against the Flu ...

   www.aol.com/kn95-n95-face-masks-help-182200553.html

   It can be hard to find quality KN95 and N95 face masks. These meet CDC and FDA standards, and they’re actually in stock. These KN95 and N95 Face Masks Help Protect Against the Flu, COVID, and RSV

7. Explainer-N95? KF94? Which mask is best at protecting ... - AOL

   www.aol.com/news/explainer-n95-kf94-mask-best...

   WHAT ARE N95 MASKS? N95 respirators worn correctly are designed to filter out at least 95% of particulate matter in the air, preventing anything larger than .3 microns from passing through.