ceiling mounted exhaust fan 1.non-power roof fan 2.run automatically by wind 3. high quality and quietly running

Roof non-power fan   ceiling mounted exhaust fan

Automatic driving by wind, working 24 hours of a day

High sensitivity, the blades drive with slight wind, the difference in temperature also makes the blade driving.

Stable rotary, mute sounds so no influence of the workshop

Complete senior axis bearing, no lubrication

Corrosion resistant, acid proof and alkali proof, long time using

Different sized according to the size of the workshop

The size can be made according to customers' requirements

Gongle first class wind-driven non-power roof fan