Features

• Adopting oil-free piston pump

• Clean-without pollution of oil and smoke

• Convient-no need add oil to maintain daily

• Safe-no plus pressure during using

• No regorging-keep pressure when the machine stops, so the liquid won’t flow backwards

•Complete plastic panels, hand-switch and foot-switch for operating easily. Select negative pressure at will with no level for pressure adjustment, and overflow protection mechanism, safe and reliable.