Electric suction unit is the new generation oil-free medical suction unit with negative pressure pump. ● Oil-free piston pump helps to keep from oil mist pollution. ● Plastic panel makes it resistant from water erosion. ● Low noise, easy to operate with manual and pedal switches. ● Overflow valve helps to prevent liquid from flowing into pump. ● Medical suction, high negative pressure, high flow rate. ● Negative pressure is adjustable according to requirements. Suction pump: piston pump Ultimate negative pressure value: ≥0.09MPa Regulating scope of negative pressure: 0.02MPa ~ultimate negative pressure value Reservoir: ≥2500 mL/pc, 2pcs in the suction unit Power supply: AC220V/110V and 50Hz/60Hz Input power: 150VA+15% Air exhausting speed: ≥20L/min Noise: ≤65dB(A)