In the design, "Small Cooling Fan" Speaking in front of the design in addition to universal design. There are also some cooling fan with some very special design. Better meet the needs of users through the application of technology and process updates. "Small Cooling Fan" in the dust, long-term use of air flow through the various parts of the city covered with a thick layer of dust leading to poor Merry Increased blade weight. Reduce speed or increase the electrical load and even cause damage to the fan. "Small Cooling Fan" operation is changed as the case of heat, at a slower speed operation, the cooling fan will produce less noise and consumes less energy.