1.Specifications / structure
1). Material: made of stainless steel by stretching forming, attractive appearance, no rust,
2). Bearing: wholel sealing bearing, which can ensure it operates smoothly and constantly.
3). Special central shaft design, high-class lubricating bearing system: preventing turbine blades
Rotating at high speed from deformation, and extending the service life.
4). Inside support frame: cast iron.

2.Advantages
1). Automatically running. Wind drive. One time investment, no anymore cost.
2). No operating cost, no electricity consumption, environmental protection, energy-saving.

7. Why should you consider a no power roof turbine ventilators?
The ventilator is very quiet and the rotating action provides employees with visual knowledge that the unit is operating.