... Mask Purify Air 30M Purify Air 30M with CE certificate SGS tested, guarantted by PICC Fire Protection Face Cover Face Mask Purify Air 30M Main ... ) eqv En403:1993=15/ 30/ 60min, poison gas and smoke protecting, fireproof, hot-radiation protecting, good sealing property ... protection: Carbon monoxide (CO),hydrocyanic acid(HCN), poison smoke and fog, etc. 3. Mist permeability coefficient<5%, Inhalation ...