Qingzhou Yongsheng Machinery Co.,Ltd is one of the professional China non power roof fan manufacturers and suppliers, welcome to wholesale low price turbo roof fan from our factory.

Working Theory: convection between ;natural wind ;and air to accelerate and transform any parallel airflow into vertical so as to improve the indoor ventilation. The hot air rises and ;Cold Air ;falls, which makes the fan rotate. So the ;indoor heat, stink and dust are exhausted effectively. It also can effectively remove indoor soot, smoke, odor, moisture, heat, decorative harmful gas, dust, human metabolism and other dirty volatile mixed-doped odor as well as viruses and bacteria invasion.  

Working Result: it improves the working environment, protects workers' health and enhances the working efficiency.

Application Areas: warehouse, toilet, factory, workshop, stadium, tennis hall, assembly hall, garage, ;paper Mill, galvanization factory and coating factory.
◆Need no energy: Nature wind drives,operating in 24hs the whole day  
◆High efficient air & moisture removal capacity, better than that of similar products over 25%
◆Unique blade design with smart operation and wind-proof & rain-proof
◆Imported bearing, free lubrication,no noise and free maintenance
◆Unique variable angle tube help to realize easy installation
◆High-quality stainless steel body. Supporting brackets are all made of stainless steel, which has very good corrosion-resistant ability.
◆Environmental protection, energy saving and ;no electricity ;cost.
     

Stainless Steel Roof Fan                           

Color Steel Plate Roof Fan