... typeProtection against objects(example)Test agentGrade 3 filterThe concentration of the gas mg/lAntivirus time min≥Grade 2 filterThe ... ,hydrogen phosphide,Diphosgene,Lewisite,mustard gas,poisonous smoke and fog etc(CNCL)3.0501.123P-BGreyComprehensive antivirushydrocyanic,acid ... Bromethane,cyanogen chloride,hydrogen phosphide,Diphosgene,Lewisite, mustard gas(CNCL)3.050 Z-B/CO-P3Gray and white with ...