"Micro Cooling Fan" who should not be facing the wind, blowing straight, invade the body, especially in frail or sweating, it is best to let a fan blow in one corner. Children, elderly, frail people, but should use less fan blowing, but can be "Micro Cooling Fan" regulate indoor air, thereby indirectly cooling. When the dripping sweat but can not direct access to fan blowing, so as not to cause surface perspiration disorders, leading to destruction of the human circulation, it is easy to cause a stroke. When the wind should not open too much sleep, during sleep, the body slows down circulation of people, but this time the body is most vulnerable when facing the body of excessive wind blowing, it will cause the body extremely suited appeared human weakness symptoms appear severe stroke. Fans should not be open long, open "Micro Cooling Fan" for too long, the body will produce discomfort phenomenon. With the large body temperature will reduce the evaporation of sweat and the passage of time, it is easy to cause colds, abdominal pain, diarrhea and other symptoms, should be appropriate to open, it is recommended to open time is about one hour is appropriate.