Specifications

unpowered roof fan
1) ss blade,high quality
2)easy installation
3)unpower.no enerfy consumption
4)widely used

Hengyuan cooling pad has one layer of thin water  film on the surface of corrugated  fiber paper.When the outside hot air pass through the paper, water on the thin film absorb heat in the air and then evaporate into vapor, and the cool air can enter the room. It is a good use of the principle of water evaporation temperature decreases.

 

1.Without any energy, environment friendly, benefit from an investment for life.

2.Efficient ventilation, moisture capacity

3.Special blade design ensures to operate sensitively.  

4.Imported bearings, low noise,durable

5.The unique angle-diameter, easy to install.