"220V Cooling Fan" called fans, Hong Kong called fan, Japan and South Korea called Ventilator, from the beginning of the invention in the world has gone through more than 100 years, it is a hot summer pet, with air conditioning and other high-end appliances invention application gradually began to decline. From energy efficiency and convenience, "220V Cooling Fan" of the same advantages as shine, and with the development of social progress. Said products from the world talking about fans fans Past and Present invention: mechanical fan originated in 1830, a man named James Byron Americans inspired by the structure of the timepiece, invented a fixed ceiling, with a spring-driven mechanical fan. This "220V Cooling Fan" cool slowly rotating blades brings people feel happy, but have to climb the ladder to the winding, very troublesome.