Choose excellent quality products. Because "220V Cooling Fan" industry technology low, uneven products on the market, be sure to choose well-known brand products, so to ensure quality. "220V Cooling Fan" in conjunction with the use of air conditioning. Fans can directly convert electrical energy into kinetic energy, power consumption is very low, from the point of view of energy conservation, the use of the fan is the best choice for the summer. And the fan used in conjunction with air conditioning, air-conditioning temperature is set at about 26 degrees Celsius, power and money. Try to use the mid-range or low gear. Usually the first to open files fast, cool, slow down multi-file, you can reduce the "220V Cooling Fan" of power.