The Features of Non Power Roof Ventilation Fan by Xianrun Blower

Non Power Roof Ventilation Fan Features by Xianrun Blower 

1. The curved blades have the best condition after scientific calculation, it can prevent rain and water intrusion during the working. The air exhausting efficiency is high, and the ventilation fan will operate lightly as long as the indoor and outdoor temperature difference is more than 0.5 Celsius degree.

Non Power Roof Ventilation Fan

2. Center shaft have detailed steps, which guarantee the fan blade will never be out of shape under high speed operation, and improve the ventilation fan service life. 

3. Changed diameter pipeline can make the ventilation fan easy to install in the slanting roof. The installation is very simple, ordinary people can finish the installation within 30 minutes. 

Non Power Roof Ventilation Fan

4. Saving money, reduce supporting cost, save electricity cost, and mounting cost, reduce noise.

5. Long service life, this model non power roof ventilation fan can work at least 10 years.

6. Free lubrication and maintenance.  

7. The material is stainless steel, and corrosion resistance. 

Non Power Roof Ventilation Fan