Electric Suction Apparatus

. Adopting oil free piston pump . Clean without pollution of oil and smoke . Convent no need add oil to maintain daily . Safe no plus pressure during using . No flow backwards 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 . With trolley type folding handle . With foot controlled pedal