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1. QUALITY ASSURANCE: products meet ASTM E2952-14 standard, certified by NIOSH and LA 2. MATERIAL: premium rubber gel mask + activated carbon filter 3. APPLICATION: Applicable to the protection from organic gases and vapors, such as benzene, aniline, carbon tetrachloride, nitrobenzene, chloropicrin, chlorine, acetone, alcohol, carbon disulfide, carbon trichloride, bromomethane, nitroalkane, etc NOTED: 1.The filter cotton and cartridge are not washable 2.Pls use fresh water to rinse the facepiece, do not use other detergent in case of damage its anti-fog effect. 3.cartridge of Suggestions for 200 hours, depending on the work environment please change regularly, if you smell the harmful substances in using, please replace the cartridge immediately Original filter cartridge pls search ASIN: B0788LKPFN