Portable Electrical Sputum Suction Device (AM-23A. I) AM-23A portable electrical sputum suction device can be used for suctioning sputum and other thick secretions in hospitals, and may also be used for fist aid in the household. Features of 23A·I:middot;I:iddot;I: All-plastic ABS enclosure that is formed in one piece is adopted. Macromolecule suction bottle is adopted, allowing for cleaning and disinfection. This device has no oil pump and is maintenance-free. This device has a small volume and low noise. This device is equipped with an overflow protection unit to prevent liquid from getting into pump body. AM-23A portable electrical sputum suction device can be used for suctioning sputum and other thick secretions in hospitals, and may also be used for first aid in the household. The machine adopts oil-free lubricating pump, avoiding the pollution of oil mist. The pump requires no daily maintenance and servicing. The overflow protection device in the machine prevents liquids from flowing into the pump. The machine is characterized with small dimensions, light weight and high mobility. (Note: AM-23A. I adopts full plastics shell. ) Technical Specifications: Mains: AC 220V ± 10% 50Hz10% 50Hz10% 50Hz Pump structure: Oil-free pump Air pumping efficiency: ≥ 15L/min/min/min Limit of negative pressure: ≥ 0.08Mpa8Mpa8Mpa Adjustment range of negative pressure: 0.013 - 0.08Mpa Input power: 150VA Liquid vessel: 1000ml x 2 Air storage vessel: 2500ml x 2 Noise level: ≤ 55dB55dB55dB