electric fan heaters and air from the body should not be placed close to the place, if Vicinity strong winds blow and only one side of the body, the skin surface sweat evaporates quickly by the wind, significantly lowering the temperature, and wind blowing vain side, sweat evaporates slowly , so that both sides of the body's blood circulation and sweat excretion gap is too large, the nerve center will be out of balance, once it takes too long, will be exhausted in various organs, so feel malaise. Therefore, when the ceiling fan, the best distance of 2 m people outside, standing oscillating fan so that even a soft wind blowing