Specification:

Stainless steel blade & frame
Large air volume with low noise
Light weight & high-strength belt pully
High quality bearing

Roof Non-Power Fan/exhaust fan

1)      Easy installation and maintenance.

2)      Rotary stably, quietly to improve the inner environment of room.

3)      Using complete senior axis bearing, no lubrication, solid.

4)      Corrosive resistance, acid and alkali resistance, long service life.

 

Non-Power Fan Features:

 

 1). Natural wind drives, operating 24 hours of whole day
2.)I. High sensitivity, slight wind or the range of temperature can drive the blader to turn around
3.). Rotary stablely, quietly to improve the inner environment of room
4.). Using complete senior axis bearing, no lubrication, solid, low fault rote
5.)Corrosive resistance, acid and alkali proof, long service life