An electric suction by vacuum pump, vacuum regulator, negative indicators, collecting container assembly, foot switch, chassis and other components; 2, can meet all kinds of hospitals and medical units that require high efficiency during medical procedures, attract large flow requirements for various clay secretions attract medical unit for sepsis and other surgical use; 3, vertical structure, novel design, beautiful appearance; 4, using a double-headed piston pump suction device, noise small; 5, with anti-overflow safety device, maintenance work is simple, without refueling; 6, manual and foot switch connected in parallel to any use, easy to operate; 7, electric suction type and degree of protection against electric shock by classification as Class Ⅰ equipment Part B applications, load continuous operation mode for intermittent operation (intermittent attract), IPX0, non-AP or APG-general type device; 8, the products meet GB9706.1, YY0505, YY0636.1 requirements. Specifications: 1, negative limits: ≥0.09MPa (680mmHg); 2, negative pressure adjustment range: 0.02 ~ 0.09MPa (150 ~ 680mmHg); 3, the pumping rate: pump outlet (the outlet) ≥35L / min terminal ≥25L / min; 4, Power: AC220V ± 22V, 50Hz ± 1Hz; 5, power: ≤280VA; 6, noise: ≤60dB; 7, the collection container capacity: 2500ml × 2; 8, the working environment: Temperature: + 5 ℃ ~ + 35 ℃, relative humidity: 25 ℃ not more than 80%, atmospheric pressure: 86KPa ~ 106KPa.