220V AC Cooling Fan healthy use

Buy "220V AC Cooling Fan", you will be healthy to use it? Here to give you a brief introduction, you should be able to choose a change in wind speed, there are a variety of hair stalls. You can choose some sleep gentle wind or wind, which is more healthy. "220V AC Cooling Fan" hair direction, to the ever-changing, straight hair can also cause physical discomfort, such as blown and no blown place where different sweat evaporation rate, can cause physical discomfort. Of course, "220V AC Cooling Fan" hair not too close distance, preferably more than two meters, not because the heat would go stand in front of a hair. Finally, the fans do not blow for hours, proper rest is appropriate.