What to pay attention to when using the fan

1. The wind speed should not be too fast: the indoor wind speed is best controlled within 0.2 m/s -0.5 m/s, especially in well-ventilated rooms and places with excessive wind, the wind speed of the electric fan should not be too fast.

2. It is not advisable to blow directly to people: Especially when the body is weak or sweating profusely, it is best to let the fan blow towards a corner. When blowing an electric fan, it is best to be 2 meters away from people to make the blowing wind even and soft.

3. Do not blow for a long time: the fan should be blown and stopped, and a swing-head fan should be used. For children, the elderly, and people with frail health, it is better to use electric fans less for blowing, but electric fans can be used to adjust indoor airflow to indirectly reduce the temperature. Generally, it is appropriate to blow for half an hour to 1 hour at a time.

4. Do not blow immediately when sweating: pay attention to when you sweat a lot, do not immediately blow the air while sitting or lying still. Because the blood vessels on the surface of the whole body expand and are suddenly blown by the cool breeze, it will often cause vasoconstriction, and the perspiration will stop immediately, resulting in an imbalance between heat production and heat dissipation in the body, and excess heat cannot be excreted.

5. People with poor resistance will rarely blow: After the cool breeze blows, the local defense function will decline, viruses and bacteria will invade, which can cause upper respiratory tract infection, muscle and joint pain, and some even abdominal pain and diarrhea.

6. Avoid blowing while sleeping: When a person is asleep, the functions of the various organs of the body are reduced to the lowest level, all reflexes disappear, the immunity is reduced, and it is easy to cause diseases.