BST-486   Quickly absorb and remove the toxic gases released during welding. Unique bace-laid air filter packs with minimum air resistance, higher suction power that ensures excellent owrking environment. MODEL PCS/CARTON Net weight/pcs(kg) Gross weight/ctn(kg) Dimension(cm)   Power input Pump/motor type BST-486 18 1.2 26 67*36*42  110/220 Brushless motor