... on the mask.(2) Protective time: ≥60min., Poison gas and smoke protecting, fire proof, good sealing property, suitable for all kinds ... adult faces.(3) Object of protection: CO, HCN, poison smoke and fog, etc. This respirator contains special drug composition which ... hospitals, subway, ships, stations, quay, public entertainment places and dwelling house, etc.5. Terms of payment1. T/T 100% in advance2 ...