Model:CL-207 Specification: I Widely applied in hospital operation room to suck mucus such as pus, blood, phlegm, abortion stuffs etc. 2.Use efficient plunger pump which need no oil to lubricate, do not pollute, and have long life. 3.Suction pump is negative pressure, one-way pump, never produce positive pressure, and ensure safety. 4.Negative pressure adjustable valve and check valve, be capable of adjusting safe pressure, and selecting arbitrary value in safe pressure range. 5.Pedal switch is controlled by low voltage, safe and convenient. 6.Limit negative pressure value: >0.09Mpa under standard atmospheric pressure. 7.Air suction rate: >20L/min (at the end), >30L/min (at the pump) under standard atmospheric pressure. Mucus bottle: 2500m1 X 2 Noise: <60dB (A)