Respirator Cartridge Color Codes
Respirator cartridge colors follow ANSI K13.1 (required by 42 CFR 84.193): black = organic vapor, white = acid gas, magenta = P100 HEPA. This guide decodes all ten color classes, combination cartridge color bands, brand-by-brand model number mapping for 3M, Honeywell North, and Moldex, and what the colors do not tell you about a.
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