... (PP) , anti-static capability ,acid-proof , alkali-proof ,anti-corrosion and more;4.Adopt professional Vacuum Cleaner’s motor , water absorption ... , oil-Absorbing ,acid suction, Dust absorption ;5.Double-pass cooling system to allow the machine to work long hours ... coals, fireplace ashes etc.).It is directed to clean dirt and small ash.With long life-span,it could be your ...