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  2. NIOSH air filtration rating - Wikipedia

    en.wikipedia.org/wiki/NIOSH_air_filtration_rating

    NPPTL is the designated publisher of the NIOSH Certified Equipment List, or CEL. The CEL is a public domain database that details the respirators currently approved by NIOSH, and is ordered separated based on type of respirator, which is designated with a schedule (e.g. TC-84A). [28] The CEL was initially released in paper form on September 30 ...

  3. N95 respirator - Wikipedia

    en.wikipedia.org/wiki/N95_respirator

    An N95 respirator is a disposable filtering facepiece respirator or reusable elastomeric respirator filter that meets the U.S. National Institute for Occupational Safety and Health (NIOSH) N95 standard of air filtration, filtering at least 95% of airborne particles that have a mass median aerodynamic diameter of 0.3 micrometers under 42 CFR 84, effective July 10, 1995.

  4. National Institute for Occupational Safety and Health

    en.wikipedia.org/wiki/National_Institute_for...

    The CEL was initially released in paper form on September 30, 1993. However, due to low usage of the paper CEL, as well as the increasing number of respirators approved by NIOSH, a Microsoft Access-based version of the CEL was released. [17] Initial releases of the CEL had hose and pressure information for air-line respirators. This information ...

  5. Powered air-purifying respirator - Wikipedia

    en.wikipedia.org/wiki/Powered_air-purifying...

    According to the NIOSH Respirator Selection Logic, PAPRs are recommended for concentrations of hazardous particulates or gases that are greater than the relevant occupational exposure limit but less than the immediately dangerous to life or health (IDLH) level and the manufacturer's maximum-use concentration, subject to the respirator having a ...

  6. Windows 10 - Wikipedia

    en.wikipedia.org/wiki/Windows_10

    Shortly after the suit was reported on by the Seattle Times, Microsoft confirmed it was updating the GWX software once again to add more explicit options for opting out of a free Windows 10 upgrade; [364] [365] [362] the final notification was a full-screen pop-up window notifying users of the impending end of the free upgrade offer, and ...

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

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

    Maskc KN95 Face Masks, 10-Pack. $28. Buy now . 5. Powecom KN95 Masks, 10-Pack. Powecom’s KN95 masks come in a 10-pack and in denim blue, pink, gray, black and white. The masks are made of ...

  8. Self-contained breathing apparatus - Wikipedia

    en.wikipedia.org/wiki/Self-contained_breathing...

    The endurance of the cylinder can be calculated from the volume, pressure and breathing rate of the user. The formula: volume (in liters) × pressure (in bars) / 40 (litres per minute) - 10 minutes (the 10 minutes is a safety margin, or reserve), so a 6-liter cylinder, of 300 bar, is 6 × 300 / 40 - 10 = 35 minutes working duration.

  9. AOL Shield Pro Browser | Free Download | AOL Products

    www.aol.com/products/browsers/shield-pro

    Just open AOL Shield Pro and click the browser menu button (three horizontal lines) in the top right hand corner of the window. Next, scroll down to Bookmarks and then click Import bookmarks and ...