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2. European respirator standards - Wikipedia

   en.wikipedia.org/wiki/European_respirator_standards

   The European respirator standards refer to the filtering classification by EN 149, EN 14683, and EN 143, all European standards of testing and marking requirements for respirators. [1] FFP standard masks (where FFP stands for filtering facepiece) [ 2 ] cover the nose, mouth and chin and may have inhalation and/or exhalation valves.

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. Respirator assigned protection factors - Wikipedia

   en.wikipedia.org/wiki/Respirator_Assigned...

   Example of measurement of efficiency of the respirator (in the workplace). Description: (1) personal sampling pump, (2) the cassette and the filter for determining the concentration (in the breathing zone), (3) the sampling line (from the breathing zone), (4) the cassette and the filter to determine the concentration (under a mask), and (5) the sampling line (from the mask).

5. 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 ...

6. What type of mask works best against COVID-19? Where ... - AOL

   www.aol.com/type-mask-works-best-against...

   As omicron spreads, experts say N95, KN95 and other respirator masks do the best job of blocking ... At the same time, the question of which type of mask to wear has grown increasingly complicated ...

7. Respirator - Wikipedia

   en.wikipedia.org/wiki/Respirator

   Some jurisdictions allow for respirator filtration ratings lower than 95%, respirators which are not rated to prevent respiratory infection, asbestos, or other dangerous occupational hazards. These respirators are sometimes known as dust masks for their almost exclusive approval only against dust nuisances: