Air supply flow rate: Gear 1: 62 L/min; Gear 2: 74 L/min. Of air pump: 1.32LBS. 1 x Air Pump. 1 x Full Face Mask. 2 x Air Pipe. Equipped with portable power source Constant flow supplied air Comes with a canister Can be used for 7H once after 3-hour fully charged Used for benzene, acetone, alcohol, aniline, disulphide, carbon tetrachloride, chloroform, bromomethane, chloromethane, chloride, etc.