Suction unit / suction machine is used for absorbing thick liquid, blood and phlegm. It can prevent pulmonary aspiration and facilitate breathing. ✓ High negative pressure, large flux, low noise✓ Negative pressure meter made of plastic to reduce operation noise ✓ Advanced overflow-protection design which prevents pus and mucus from leaking into the machine ✓ Compact, lightweight and easy to carry especially suitable for emergency and outside use ✓ Designed for absorbing thick liquid such as blood and phlegm. Contents Suction unit x 1 Reusable collection bottle x 1 Connecting tube x 1 Suction filter x 2