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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. 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 [43] 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

4. 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

5. Powered air-purifying respirator - Wikipedia

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

   A powered air-purifying respirator (PAPR) is a type of respirator used to safeguard workers against contaminated air. PAPRs consist of a headgear-and-fan assembly that takes ambient air contaminated with one or more type of pollutant or pathogen , actively removes (filters) a sufficient proportion of these hazards, and then delivers the clean ...

6. These are the Amazon deals our editors are adding to our ...

   www.aol.com/lifestyle/these-are-the-amazon-deals...

   These are the only deals worth shopping for this week at Amazon. Keep crossing off items on those shopping lists with great savings.

7. European respirator standards - Wikipedia

   en.wikipedia.org/wiki/European_respirator_standards

   EN 14683 defines respirators for use in medical settings, [4] while European standard EN 143 defines the 'P' classes of particle filters that can be attached to a face mask, which are P1, P2, and P3. The EN 143 filters are typically used on reusable respirators, like elastomeric respirators. [5] EN 14387 is the chemical cartridge standard in ...