Non-power fan applies the theory of convection between natural wind and air, which can accelerate and translate any parallel air flow into vertical, in order to improve the indoor ventilation. This kind of fan also works by the difference in temperature. The hot air rises, cold air falls, which make the fan rotate, and can exhaust the indoor heat, stink, and dust effectively. As a result, indoor temperature cools naturally, fresh air exchanges. This product is widely used in facory, workshop, warehouse and canteen with light steel structure and so on.

Roof series non-power fan is made according to the principle of air natural regulation and air flow, fixed on the roof reasonably, and can exhaust indoor heat and stink rapidly, improve the working environment, protect workers’ health, and enhance the work efficiency.