Full Face Gas Mask, Electric Constant Flow Supplied Air Respirator, 2-Gear Adjustable Respirator Mask. Package Dimensions? 13.5 x 7.9 x 7 inches; 3.9 Pounds. Department? Unisex. Date First Available? March 13, 2024. Country of Origin? China. SPECIFICATION-Charger voltage: 110V/220V- Air supply flow rate: Gear 1: 62 L/min; Gear 2: 74 L/min-N. Of air pump: 1.32LBSPACKAGE-1 x Air Pump-1 x Full Face Mask-2 x Air Pipe-1 x Canister-1 x Charger.