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2. 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

3. 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 ...

4. 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 ...

5. Respirator - Wikipedia

   en.wikipedia.org/wiki/Respirator

   The service life of the cartridge varies based, among other variables, on the carbon weight and molecular weight of the vapor and the cartridge media, the concentration of vapor in the atmosphere, the relative humidity of the atmosphere, and the breathing rate of the respirator wearer. When filter cartridges become saturated or particulate ...

6. NIOSH air filtration rating - Wikipedia

   en.wikipedia.org/wiki/NIOSH_air_filtration_rating

   Person wearing purple 3M 7093 P100 cartridge filters. For particulate respirators, while NIOSH designates P100 as filter cartridges that can use the "magenta" color, ANSI designates P100 as "purple", a color which can be seen on some P100 filter cartridges.

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