This kind of respirator is an essential personal poison-gas-protecting respiratory apparatus when fire happens in hotels, office buildings, department stores, banks, posts and telecommunications, power industries, public entertainment places and dwelling housed, etc; Main Technical Specification: 1. Comply with the Ministry of Public Security standard GA209-1999) eqv En403: 1993=15/ 30/ 60min, poison gas and smoke protecting, fireproof, hot-radiation protecting, good sealing property, suitable for all kinds of adult faces. 2. Object of protection: Carbon monoxide (CO), hydrocyanic acid(HCN), poison smoke and fog. 3. Mist permeability coefficient<5%, d. Inhalation resistance<800Pa, Exhalation resistance<300Pa. Operation: 1. Open the cover, take out the vacuumized packing bag. 2. Tear the vacuumized packing bags immediately, take out the Respirator, and pull out two plugs. 3. Put out the helmet and fasten it with its string. 4. Choose right way and escape decisively and quickly.