Non-power roof fan

Products Name:roof fan
Quantity:unlimited
Packaging:carton box
Full Size:AP-500
Place of Origin:Shanghai
High-efficiency ventilation
The scientific design of the curved turbine blades, as well as excellent low resistance bearings can continue to operate even in the breeze and constantly emit indoor stale air.
Rugged corrosion-resistant stainless steel body
High-quality stainless steel body, can withstand a long period of windrain and the erosion of indoor gases. Excellent absolute closed American UBC low resistance bearing is durable and lubricant, no need to maintain.
Installation is simple and fast:
Due to adopting a unique angle-pipe neck design, the ventilation device can be applied to different tilt angles roof, it significantly reduced installation cost.
Environmental protection, energy saving, no electricity cost.
It can operate by natural wind after installation without electricity