Portable absorb phlegm apparatus designed based on developing orientation of similar products at home and abroad is a new generation of oil-free lubrication suction device, which is suitable for use by the patient who has difficulty in phlegm removal. The negative pressure limit is 0.075MPa. The negative pressure regulating range is 0.02 Mpa. It has a suction rate of 18L/min (for adult suction). It makes a noise of 65dB. The liquid holder has a capacity of 1000 mL. It requires a power source of AC 220V/50Hz, 1.5A. It has an input power of 90VA. It has a weight of 4.4kg. It's overall size is 280 x 196 x 285 (mm).