"220V Cooling Fan" very attractive to the consumer that is its more intelligent intimate. In the market, frequency commonly used seven Roufeng fan blades and five-speed 32-speed design, some products of "220V Cooling Fan" Winds could do 36 stalls regulation, more swing 8 characters, 100 degree swing to meet the air traffic demand more consumers. Blowing mode may include adjusting the air flow, choose natural wind, sleep wind, standard wind or wind ECO intelligent, 24-hour appointment boot, timed shutdown. At present, some brand frequency "220V Cooling Fan", in the case of low pressure operation, can achieve 16 db ultra-quiet operation. And lowest power can achieve 30W, compared to the average fan of 55W, the energy efficiency of more than 50% energy saving effect is obvious.