By keeping track of the latest developments, we are offering High Power Round EC DC Inverter Cooling Exhaust Fan. Our offered exhaust fan uses an electronic commutation (EC) motor, which is a type of brushless DC motor. High Power Round EC DC Inverter Cooling Exhaust Fan uses an electronic commutation (EC) motor, which is a type of brushless DC motor, and an inverter for controlling the speed of the fan. The offered for exhaust fan is demanded in ventilation and air conditioning systems in commercial and industrial buildings. We are giving this exhaust fan in several specifications according to the needs of customers.