... air tube (bent pipe), incorporated with design dust bag, keep filter from dust,keep superior suction performance;2.Design of ... corrosion and more;4.Adopt professional Vacuum Cleaner’s motor , water absorption , oil-Absorbing ,acid suction, Dust absorption ;5.Double-pass cooling ... excellent quality and service. Standard Accessories: wet and dry vacuum cleaner/20L/25L/30L Capacity/4M cord/CE/GS/ROHS/SAA ...