Electric Supplied Air Fed Full Face Gas Mask Constant Flow Respirator System Item Specifics: 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 Built-in battery:4000mah Battery Type:18650 Batteries Pack Function: — Equipped with portable power source mainly overcome the problems of big air in-taking resistance, difficulties in breathing, etc. 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. 1 x Full Face Mask 1 x Air Pump 2 x Air Pipe 1 x Canister filter 1 x Recharger 1 x Cloth bag 1 x Paper box. We are always here to help. And all messages will be replied within 24 hours except weekends or American holidays, in case of you re not happy with our products or service, please just contact with no any hesitete, and us side would do our best to service for you to satisfatory always.