... filters 4.custom service available Product Name: safety respirator mask with double filtersModel No.: FD-3Product DetailsPacking & ... such as benzene, chlorine, acetone, alcohols, aniline, carbon bisulfide, carbon tetrachloride, chloroform, methyl bromide, chloromethane, nitroalkane7# filter ... and steam damage to human body, such as carbon dioxide, chlorine, hydrogen sulfide, nitrogen oxide, ...