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Respirator cartridge (3M 6009) for protection against mercury vapor and chlorine. This cartridge has an indicator that progressively changes color (from yellow to black, 1-2-3-4) when it is exposed to mercury vapor.
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.
According to 3M, respirators made according to the following standards are equivalent to US N95 or European FFP2 respirators "for filtering non-oil-based particles such as those resulting from wildfires, PM 2.5 air pollution, volcanic eruptions, or bioaerosols (e.g. viruses)": [40] Chinese KN95 (GB2626-2006): similar to US.
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 ...
A typical organic vapor respirator cartridge is a metal or plastic case containing from 25 to 40 grams of sorption media such as activated charcoal or certain resins. 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 ...
Cartridge service life is dependent on many factors, [5] [22] including contaminant type and concentrations, interference from other chemicals, breathing rates, whether respirator use is continuous or intermittent, sorption capacity of the cartridges, and environmental factors like humidity and temperature. [23]
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