... 3/4/7No.Anti-virus typeProtection objectTest agentsTest gas concentrationmg/L(%,V/V)Time anti-virus ... and vapors: benzene, chlorine, acetone, alcohols, aniline, carbon disulfide, carbon tetrachloride, chloroform, methyl bromide, chlorine, methane, nitro-alkane ... 108)257Anti-acid gasAcid gases and steam: carbon dioxide, chlorine, phosgene, sulfur dioxide, hydrogen sulfide, oxides of nitrogen, phosphorus ...