EC high-efficiency fan, high static pressure and high air volume, at the same time ultra-thin and low-noise structure design, to improve the system air performance and purification energy efficiency, reduce noise and overall size. §Forward tilting multi-wing high-efficiency compact EC centrifugal fan §Superior air performance §Low noise and vibration §High reliability and long life §Constant speed, constant torque, sensorless constant airflow optional. §EMC in accordance with national industry standards