Axial flow fans are a common ventilation and air exchange product, also a series within the large category of axial flow fans. They are primarily used for ventilation and air exchange, or to enhance heat dissipation in general factories, warehouses, offices, and residential buildings. Without the housing, they can also serve as free-standing fans and can be installed in series at intervals along longer exhaust ducts to increase the air pressure within the duct.

Axial flow fans have been developed based on similar products internationally, through model testing research, which determined the fan blade shape. A cylindrical hub structure has been adopted, and the motor has been redesigned to reduce flow losses. As a result, the efficiency of the fan at the outlet has been increased to 77% by circular area calculation and to 89.5% by annular area calculation. The noise level has been reduced by 3.6 dB compared to A-weighted sound, and the strength at the blade root has been enhanced, preventing blade cracking.