An excellent performance "Cooling Fan Manufacturer", which many factors determine the ultimate fan cooling performance, including wind, speed, noise, length of life, what kind of fan bearings. Obviously, the greater the amount of air cooling fan its cooling capacity is also higher. This is because the heat capacity of air ratio is certain, larger air volume, which is more air per unit of time can take more heat. Of course, in the case of the same air volume "Cooling Fan Manufacturer" cooling effect of the way the wind flow. Generally, in the manufacturers cost considerations, to design air volume fan, it is necessary to sacrifice some pressure. If the cooling fan can bring a lot of air flow, but the pressure is small, the wind blew less than the bottom of the radiator, on the contrary, it often means big pressure on the small amount of wind, there is not enough cold air and heat exchange fins , can also cause "Cooling Fan Manufacturer" cooling effect is not good.