Based on developing orientation of similar products at home and abroad ia a new generation of oil free lubrication suction device, which is suitable for use by the patient who has difficulty in phlegm removal due to illness, coma and operation, as well as for aspirating such liquid as puc and blood during the clinical practice. it is the commonly applied medical device for use in the emergency room, operation room and for nursing in sickroom and home health care. h003-c portable phlegm suction unit principal technical data voltage: ac220v 50hz max negative pressure value: ?0.075mpa pumping rate: ?18l/min reservoir volume: ?1000ml power: 90va