Energy when "220V AC Cooling Fan" impeller rotates, the gas from the inlet into the impeller axially, pushed by the impeller blades increases the gas leaving, then flows into the guide vanes. The stream becomes the vanes deflect the axial flow, while the gas is introduced into the diffuser tube, "220V AC Cooling Fan" and further the gas pressure energy is converted to kinetic energy, and finally introduced into the service line. Work quality axial fan blades similar to airplane wings. However, "220V AC Cooling Fan" is to lift up on the wing and the role of supporting the weight of the aircraft, and high-quality axial fans and air movement is a fixed position.