Feature: 1. Adopt oil-free piston pump, high negative pressure, large flowing advanced anti-overflow devices, compact and light. 2. Designed for sputum aspiration and drainage of patients. It can suck out thick sputum and mucus, play a dredging role, and can be used in operating room, emergency room, intensive care unit and general ward. 3. Low noise, anti-slip and wonderful heat dissipation performance, comfrotable to use. 4. Liquid storage bottle embedded structure designs, quadrate negative pressure meter, effectively prevent possible viscous liquid from spilling into the machine. 5. Noise treatment below 65 decibels reduces noise pollution and allows the whole family to enjoy a quiet and comfortable treatment. Specification: Condition: 100% Brand New Item Type: Sputum Suction Machine Material: ABS Input Power 90VA The Fuse Tube RD15 x 20/1.5 A Noise ≤65db (A) Negative Pressure Value: ≥0.07mpa Negative Pressure Adjustment Range: ≥0.01MPa negative value Extraction Rate: ≥17L/min Atmospheric Pressure Range: 860hpa-1060hpa Ambient Temperature Range: 40℃-+55℃ Relative Humidity Ranges: 10% to 93%. Package List: 1 x Sputum Suction Tube 2.67mm (8#) 1 x Suction Flexible Catheter2 x Fuse Tube1 x Host 1 x Manual