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  2. Chemical cartridge - Wikipedia

    en.wikipedia.org/wiki/Chemical_cartridge

    Legislation in the EU [72] [73] allows an employer to use only supplied air respirators when employees work in conditions where air pollution is IDLH, because of the risk of untimely cartridge replacement. Combined gas and particulate respirator canister for protection against acid gases, the type of BKF (БКФ). It has a transparent body and ...

  3. File:Methods for the timely replacement of cartridges in ...

    en.wikipedia.org/wiki/File:Methods_for_the...

    Short title: Methods for the timely replacement of cartridges in respirators; Date and time of digitizing: 15:10, 22 June 2015: Software used: LaTeX with hyperref package

  4. 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 ...

  5. NIOSH air filtration rating - Wikipedia

    en.wikipedia.org/wiki/NIOSH_air_filtration_rating

    NIOSH particulate classes for powered air-purifying respirators Particulate Respirator class Minimum efficiency level Permitted for TB Permitted for asbestos [42] 0.3 micron DOP: HEPA or HE 99.97% Yes Yes 0.075 to 1.86 micron NaCl: PAPR100-N Rating discontinued Not yet defined 0.075 to 1.86 micron DOP PAPR100-P

  6. Self-contained breathing apparatus - Wikipedia

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

    42 CFR 84 replaces the 30 CFR 11 respirator regulation used by NIOSH. As of 2001, quality assurance of SCBA harnesses is required. As of 2001, quality assurance of SCBA harnesses is required. Labels have been updated to remove MSHA emblems from respirator labels, as MSHA is no longer involved in respirator approval except for respirators ...

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