yuwell Portable Phlegm Suction Unit one Bottle 

This suction apparatus contains an Oil free lubrication pump to control pollution from the oil mist. It has low noise, it is light and portable. The negative pressure regulating system can be adjusted easily to ensure reliable and safe operation. The bottle can hold liquid for long without any odor.

Its is a brand new mechanism design with suction bottle hidden inside and a square negative pressure meter crust 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.

It is compact, lightweight and easy to carry especially suitable for emergencies and outside use.