Model DF low noise centrifugal fan is consummate craft and technological design firm material, stable and reliable performance, outstanding noise-decrease effects. It has the features such as low noise, high efficiency long life, easy installation etc. It is widely applicable for the industries and departments such as telecom, electric force electrical electronics geology coal mine, steamboat paper-making etc. It is esp fit for the cooling temperature-control, ventilation functions in the plastics; Printing machinery copying machine drying machine blown machine underground facilites etc