Will the electric fan blow at your head? Bian Xiao of "Common Sense of Life" tells everyone that learning to use the electric fan correctly can make it save electricity, be healthy and cool. Common sense of life says that if the electric fan is turned on indoors, people's body temperature can drop by 2-3 degrees Celsius, thus making the body feel cool. If you blow the fan, avoid blowing it on your head and feet, so as not to get infected with the virus and cause colds, facial paralysis, headaches and dizziness. When the outdoor temperature is lower than the indoor temperature, it is best to put the electric fan at the window and face the room, which will send the outdoor cold air into the room. On the contrary, when the outdoor temperature is high, placing the electric fan in the direction of the window can prevent the outdoor hot air from entering the room, thus keeping the indoor temperature relatively low. According to the knowledge of health care in summer, if the net cover of the electric fan can be coated with cooling oil, the electric fan will instantly become an ornament, which can bring coolness and fragrance to people. Health care points out that if you put a container full of ice in front of the electric fan, the wind from the electric fan will bring a little cold fog, which will make people feel comfortable. In addition, open the window of the upper air outlet and only open the window of the lower air outlet, so that the blown wind can not only form a ventilation channel, but also discharge the indoor hot air outside.