Power voltage:AC220V±10% 50Hz Negative pressure:≥0.09MPa(680mmHg) Suction rate:≥80L/min Range of negative pressure:0.013MPa~0.09Mpa(680mmHg) Suction bottle:2500ml x 2 Noise:≤55dB Input power:600VA Pump structure:Diaphragm type Working type:intermittent loading,continuous operation