Incorrect Usage of Electric Fan Could Harm Health

Published: 09th August 2011
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Fans are the most common appliance for people to cool down in summer. However, the incorrect usage of electric fan could cause hazards to body health such as cold, facial paralysis, scapulohumeral periarthritis and back pain.

Do not turn on the electric fan for more than one hour. As the wind blows, the body temperature decreases with the large amount of sweat evaporation. So it is to cause colds, flu, abdominal pain, diarrhea and other diseases. It is appropriate to turn on electric fan for one to one and a half hour.

Wind speed should not be too quick. When the temperature exceeds 30 ℃, the blowing wind by fans is also hot. At this time, the heat of human body release out mainly through the evaporation of sweat. If the wind is too strong, the temperature of skin surface decreases and pores are blocked. The sweat inside the body could not come out, so people will still feel hot and have symptoms of fatigue, weakness and back pain. The wind speed should be transferred to medium speed or low speed to enjoy the gentle breeze.

Electric fan should not be placed too close. If the fan is near you and only blows one side, the skin sweat evaporation speed of that side is quick and the temperature decreases obviously. But on the other side, the sweat evaporation is slow and people would feel discomfort. Thus, it is better to keep more than two meters away from electric fans.

The wind blow direction should change frequently. Set the electric fans to change direction automatically in the process of bellowing to slow down the wind of body. So that people will not feel too cool.

It does harm to body if people turn on electric fan when they go to bed. In sleep, the functions of body organs decrease to a minimum level and all reflex disappears, and the decreased immunity makes it easier for people to get diseases.

Although electric fan is convenient to bring cool feelings to people in summer, it also has potential hazards which endanger body health. So, we should know the correct method of using it.

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