Description: 【Prevention and Filtering】Prevent against organic vapors,such as benzene, aniline, carbon tetrachloride, nitrobenzene, chloropicrin, chlorine, acetone, alcohol, carbon disulfide, nitroalkane, etc. 【Application】Full face respirator mask is suitable for painting, welding, agricultural operations, polishing, Chemical laboratory, petroleum, mining, health and epidemic prevention, environmental technology protection and so on.Kindly Note: If you receive defective filters, or any other problems with mask, please feel free to contact us. We could send you one new for replacement. .