1.Low cost, easy installation could be inserted to middle of air pipe, including completed air pipe.

2.Effective and reliable blow, exhaust and circle, compact structure could be available for high place installation.

Motor

1.Could reduce noise and vibration by keeping balance for the current

2.Mini size and reliable performance ensure well management for the electricity.

3.Three speeds control and re-set thermal device

Structure

1.Consist of piping, impeller, motor, base and connection box

2.Plastic impeller, external rotor motor and galvanize steel housing

3.Flexible door ensure easy maintenances

4.Forward curve blade, connect the fan motor and air pipe directly