1.non-power roof fan
2.run automatically by wind
3. high quality and quietly running
4.high efficiency
5.economic using

Roof non-power 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