High speed blow
In order to cool oneself as soon as quickly, some people set the fan on the high-speed , and think that high-speed wind drive out can hot-gas .However ,this is incorrect .When the temperature exceeds 30 ℃, the air temperature is close to the normal temperature of the human body . The electric fan's high-speed wind that is also high temperature fan , which make the skin surface temperature decreases, the blocking of pores, the interior of the body can not sweat fluid to circulate out, and you still feeling that there will be hot ,fatigue,and pain at the same time, this is "BIE khan" .There are all because of the heat from the body should mainly rely on sweat evaporation, and the electric fan blowing too much lead to the results .Therefore , it should not high-speed blowing about the electric fan , and we shall be transferred to the medium or low speed ,and also blowing gentle breeze as well.
Long time blowing
Many people like blowing fan for a long time , because they also feel hot just blew cold body , so they feel comfortable for blowing long time .However, a long time to blow fan , which make the body temperature decrease with a large number of sweat evaporation .This is easy to cause colds, flu, abdominal pain, diarrhea and other diseases .Generally , it is appropriate that blowing half an hour to one hour .
Nearby blowing
It should not be placed the fan very close to the body when blowing the wind . if you blowing nearby strong winds and only blow one side of the body , which make surface skin of blowing the wind sweat to evaporate quickly ,the temperature is reduced significantly;on the other hand , the side of not wind , and sweat evaporates slowly .This will cause the body's both sides of the blood circulation and sweat fluid excretion difference is too big ,the nerve center would be out of balance .Once the time is too long, the organ would be terribly fatigued, and feel the general malaise.Therefore, it is preferably that keep the distance 2 meters away from body when blowing fan , so that the wind is uniform and soft.
Blowing directional wind
The electric fan is most shaking head fan , so it is appropriate continuously moving position and direction when blowing fan , which forming a large wind and a little wind , so that the body surface get wind slowly, do not feel too cold, and feel the whole body temperature uniformity.Therefore , it is the best use of the shaking head fan, don't blow directional wind.
Asleep blowing
Most people like blowing fan with sleep , and the body organs function is minimum level that all reflex disappears , immunity decreased , which is easy to cause disease .
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