Principal technical data Voltage: AC220V 50Hz Power: 90VA Max negative pressure value: >0.070MPa Pumping rate: >llL/m?n Reservoir volume: >1000mL Portable phlegm suction unit is a newly designed oil-free lubrication pump based on extensive design experience and developmenttrend of domestic and overseas products. It is specially designed for absorbing thick liquid such as blood, phlegm etc.it is not only used as aspirator in operation room, emergency room, but also at home as health care product. Features High negative pressure, large flux, low noise. It is a brand new mechanism design with suction bottle hidden inside completely made of plastic. This design not only reduces the working noise but also makes it more fashionable and precise. It adopts advanced overflow-protection design, which can prevent pus and mucus from leaking into the machine. Compact, lightweight, and easy to carry especially suitable for emergency and outside use.