Specifications: Product number:YN-SC01 Suction bottle(glass): 2500ml/bottle,2 bottles in a group Sound Level: ≤60db(A) Max negative pressure: ≥0.09MPa Max airflow: ≥20L/Min(760mmHg) Adjustable vacuum range: 20kpa~Max vacuum Power Supply: 220V,50HZ Power: ≤120VA Input power: 180VA Compressor: Swinging type Oil-free piston