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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. Chemical cartridge - Wikipedia

   en.wikipedia.org/wiki/Chemical_cartridge

   A respirator cartridge or gas mask canister is a type of filter that removes gases, volatile organic compounds (VOCs), and other vapors from the air through adsorption, absorption, or chemisorption. It is one of two basic types of filters used by air-purifying respirators. The other is a mechanical filter, which removes only particulates ...

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

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

   Best-Fitting N95 Mask: Benehal N95 Mask. Best N95 Protective Mask: 3M 8210 Particular Respirator. The Best KN95 Masks on Amazon At a Glance. Best KN95 Mask With Adjustable Ear Loops: ChiSip KN95 ...

5. Elastomeric respirator - Wikipedia

   en.wikipedia.org/wiki/Elastomeric_respirator

   mouth-bit respirators, which fit in the mouth with the nose pinched shut (escape only) quarter-mask or orinasal mask, covering the mouth and nose only; half-mask, from below the eyes to below the chin; fullface mask, from above the eyes to below the chin; Some elastomeric masks include one-way valves to let exhaled air out unfiltered.

6. Respirator - Wikipedia

   en.wikipedia.org/wiki/Respirator

   Chemical cartridges and gas mask canisters remove gases, volatile organic compounds (VOCs), and other vapors from breathing air by adsorption, absorption, or chemisorption. A typical organic vapor respirator cartridge is a metal or plastic case containing from 25 to 40 grams of sorption media such as activated charcoal or certain resins. The ...

7. Mechanical filter (respirator) - Wikipedia

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

   Filtering half mask, reusable elastomeric respirator with pink replaceable pancake filters and grey exhalation valve Full-face elastomeric respirators seal better. [1] Mechanical filters, a part of particulate respirators, are a class of filter for air-purifying respirators that mechanically stops particulates from reaching the wearer's nose ...