The best Greenhouse exhaust fan/Poultry exhaust fan made in China

 We're a professional exhaust fan manufacturer for more than 12 years, with rich enough experience. Almost every technical item can be customized, according to your request, such as size, material, voltage, etc.

exhaust fan features

1.  Automatic control to open and close the blinds leaves.

2. With recessed-handle designit it can be easily held and took ,at the same time ,not only the inconvenience of handling being avoided but also the wind turbine installation being no affected .

3. Dealer sales company fan custom belt of type A or B type belt ,to effectively meet the needs of different customers 

Working Principal:

Use the principle of negative pressure cross-ventilation, to bring the fresh air in from the opposite of the installation position——door or window naturally, and extract the indoor hot gas rapidly.Any improper ventilation problem can be solved. The cooling and ventilation efficiency can reach as high as 90%-97%. 

 production process

project