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MSA Advantage Respirator Cartridges, Gas/Vapour Cartridge, P100 Filter - 10 Pack VariesBy:Default Your Total Solution for ReadingApproval For: 99. 97% filter efficiency level against all particulate aerosols. The Advantage line of particulate, chemical and combination cartridges is NIOSH approved (to 42 CFR, Part 84). Provide lightweight, low profile performance. Cartridges fit both 200 LS half mask and 3000 full facepiece Advantage respirators. Sold per package; ; Notes:;. Do not use in atmospheres containing less than 19. 5 % oxygen, in atmospheres containing gases or vapours