Full Face Gas Mask Electric Constant Flow Respirator Supplied Air Fed Facepiece. Electric Supplied Air Fed Full Face Gas Mask Constant Flow Respirator System. Product Name: Gas Mask Respirator. Air Supply Flow Rate. First gear: 62 L/min. Second gear: 74 L/min. About 5-7h per full charged. Fullly Charging time:about 3h. Battery Type:18650 Batteries Pack. Reject the sultry, stuffy and breathe more smoothly. Simple operation, strong portability, breathing is not stuffy, not hot. No fog, clearer vision Face screen, low and long operating sound of the fan. Long time to wear without noise. Full Charge once Can work continuously for more than 7 hours at a time. Practical supplied fresh air respirator system. Come with the canister unit can filter various harmful gas. The filter can be used for benzene, chlorine gas, acetone, alcohol, aniline, disulphide, carbon tetrachloride, chloroform, bromomethane, chloromethane, chloride, chlorinated sodium chloride, paint and its derivatives. Use the air pump to transport the air to the mask. Allow to fix the air pump on your waist, so you are more close to the air source. Works or Filter for. Rated voltage: DC12.6V. Lithium battery capacity: 4000MAH. Motor design life:? 5000H. Air volume level 1:> 62L/MIN{no load}. 2nd gear: 74L/MIN{no load}. Fan size: 128 106 106MM. Equipped with portable power source mainly overcome the problems of big air in-taking resistance, difficulties in breathing, etc. 1 Set Package Included. 1 x Mask body. 1 x Air Pump. 1 x Canister filter.