"Mini Air Cooling Fan" blade pushing air in the same direction with the axis of flow. Heat exchange and propeller fan impeller is somewhat similar, it is at work, with the majority of the air flow parallel to the axis, in other words in the axial direction. "Mini Air Cooling Fan" When the inlet flow is zero static free air, its lowest power when running back pressure will rise as the air power will increase. AC cooling fan is usually installed in the electrical equipment cabinets, sometimes integrated in the motor, due to the compact axial "Mini Air Cooling Fan" structure, you can save a lot of space, easy installation, and therefore is widely used.