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  2. 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 ...

  3. Where to Find the Best NIOSH-Approved KN95, N95 and KF94 ...

    www.aol.com/where-best-niosh-approved-kn95...

    Surgical face masks (the pleated disposable three-ply masks used by medical professionals) are still the first line of defense to help stop the spread of the virus, but KN95, N95 and KF94 masks ...

  4. Dust mask - Wikipedia

    en.wikipedia.org/wiki/Dust_mask

    Dust masks [8] have been certified by the United States Bureau of Mines since the 1930s, [9] until being phased out after the passage of 42 CFR 84. [10] D or DM respirators, standing for 'Dust' and 'Dust/Mist' approval respectively, without approval for 'Fumes,' asbestos, radionuclides, or any certified HEPA filtration. [11]

  5. Respirator - Wikipedia

    en.wikipedia.org/wiki/Respirator

    Air-purifying respirators range from relatively inexpensive, single-use, disposable face masks, known as filtering facepiece respirators, reusable models with replaceable cartridges called elastomeric respirators, to powered air-purifying respirators (PAPR), which use a pump or fan to constantly move air through a filter and supply purified air ...

  6. These American-made KN95-style masks are on sale - AOL

    www.aol.com/lifestyle/american-made-kn95-style...

    Science & Tech. Shopping

  7. Stock up on KN95s after the updated CDC guidelines ... - AOL

    www.aol.com/lifestyle/stock-kn95s-updated-cdc...

    Like the others on the list, the Powecom KN95 mask is confirmed to filter out 95 percent of particles or more. Shop it: Powecom KN95 Masks (10-pack), $14 (was $19), amazon.com. Not sure where to look?