"220V Cooling Fan" works as follows: the base 40-watt electric motor with 33 liters per second of non-leaf fan air intake fan base inside the accelerator through the cyclone, the maximum air velocity is increased about 16 times, surrounded by the inner lip bladeless fan fan head ring, which surrounds the driving force of the air near the fan head followed them into the fan head, and the speed of 405 liters per second blown outward. The air multiplier "220V Cooling Fan" with variable frequency speed size adjustment device, user adjust the size of the wind speed according to the actual situation, even increase the amount of wind, not impulse voltage, low power consumption, an ordinary fan energy consumption by half. In addition, because the fan does not carry a fan, for the curious nature of children do not have harm, and easier to clean than ordinary air conditioners and "220V Cooling Fan". It uses the latest fluid power engineering, high efficiency brushless motor through the airflow increased by 15 times, at a rate of 118 gallons per second release, the combined amount of wind 1580CFM.