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  2. Tommie Copper face masks won't fog up your glasses - AOL

    www.aol.com/lifestyle/genius-breathable-face...

    Reusable, breathable, odor-resistant, adjustable — and 50 percent off. Tommie Copper face masks won't fog up your glasses — and they're now $10 for two Skip to main content

  3. 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]

  4. People are buying copper masks to protect against COVID-19 ...

    www.aol.com/news/people-buying-copper-masks...

    A microbiologist at University of Massachusetts Amherst, Phyllis Kuhn, PhD, invented a mask made of 99.5% pure copper mesh, according to a press release from the school. A March study in the New ...

  5. Face masks during the COVID-19 pandemic - Wikipedia

    en.wikipedia.org/wiki/Face_masks_during_the...

    ] The corresponding face mask used in the European Union is the FFP2 respirator. [55] [56] Hard electret-filter masks like N95 and FFP masks must fit the face to provide full protection. Untrained users often get a reasonable fit, but fewer than one in four gets a perfect fit. Fit testing is thus standard, though debated.

  6. 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.

  7. Respirator fit test - Wikipedia

    en.wikipedia.org/wiki/Respirator_fit_test

    U.S. law requires employers to offer employees a mask with large enough fit factor. For half face-piece masks (used when the concentration of harmful substances is not more than 10 PEL), the fit factor should not be less than 100; and for full face masks (not more than 50 PEL), the fit factor should not be less than 500. The safety factor of 10 ...

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