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2. The 10 Best N95 Masks on Amazon, Plus 4 Top-Rated KN95s - AOL

   www.aol.com/lifestyle/10-best-n95-masks-amazon...

   Most Comfortable N95 Mask: 3M Aura Particulate Respirator. Best Waterproof N95 Mask: MedicPro N95 Mask. ... Most Breathable N95 Mask.

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. Elastomeric respirator - Wikipedia

   en.wikipedia.org/wiki/Elastomeric_respirator

   Elastomeric masks must be individually fit-tested and inspected for full efficacy. [2] They may be somewhat easier to fit than filtering facepiece respirators. Older mask designs were designed only to fit young adult men of average weight and a narrow range of ethnicities; newer ones use updated anthropometry and fit more people. [5]

5. Stock up on KN95s: These FDA-authorized masks are $22 ... - AOL

   www.aol.com/lifestyle/stock-kn95s-fda-authorized...

   Powecom is one of the only KN95 mask brands authorized by the FDA. ... Amazon Fire TV 55-inch 4-Series 4K Smart TV, $380 (was $520), amazon.com. Hisense 75A6G 75-inch 4K Smart TV, ...

6. Personal protective equipment - Wikipedia

   en.wikipedia.org/wiki/Personal_protective_equipment

   Equipment for use in preventing spread of disease, such as by exposure to infected individuals or contamination or infection by infectious material (including nitrile and vinyl gloves, surgical masks, respirator masks and powered air purifying respirators and required filters, face shields and protective eyewear, surgical and isolation gowns ...

7. Perfluoro(2-methyl-3-pentanone) - Wikipedia

   en.wikipedia.org/wiki/Perfluoro(2-methyl-3...

   Perfluoro(2-methyl-3-pentanone) is a fluorinated ketone with the structural formula CF 3 CF 2 C(=O)CF(CF 3) 2, a fully-fluorinated analog of ethyl isopropyl ketone.It is used as an electronics coolant liquid and fire protection fluid sold commercially by 3M under brand names such as Novec 1230, Novec 649, and FK-5-1-12.