... connect with filter. When in the environment of chemical or biological pollution, TF3D gas mask can effectively ... pink strpeAgainst organic gasorganic gas and steam,Acetone,alcohol,Aniline,carbon disulfide,carbon trachloride,Chloroform,Bromethane,Chloropicrin ... 770P-ABrownAgainst organic gasorganic gas and steam,Acetone,alcohol,Aniline,carbon disulfide,carbon etrachloride,Chloroform,Bromethane, ...