... (%,V/V)Time anti-virus min≥3Anti-organic gasesOrganic gases and vapors: benzene, chlorine, acetone, alcohols, aniline, carbon disulfide ... 454Prevention of ammonia, hydrogen sulfideAmmonia, hydrogen sulfide, toxic, and so onAmmonia(NH3)0.76(0.108)257Anti-acid ... , phosgene, sulfur dioxide, hydrogen sulfide, oxides of nitrogen, phosphorus and organic chlorine pesticidesSulfur dioxide(SO2)2.0(0.075)30 ...