📢Hot summer air conditioning blowing "face licking, grinning" is not credible

[Abstract]: The weather is hot and air-conditioned. This is the habit of most people. However, many people have reported that air-conditioning has been blowing for a long time, and there will be symptoms such as facial paralysis and sputum blowing. In fact, these are unconfirmed rumors; The mouth is not blown out by the air conditioner. Today, Xiaobian will carry out science popularization for everyone to avoid suffering from "air conditioning phobia".
Rumors:
Air conditioning blows for a long time, facial paralysis, blowing mouth and other symptoms

Correction:

The air conditioner will not blow out the face or blow the mouth.

air conditioning
Detailed rumors:
First of all, Xiaobian for everyone, what is the face of the science:
Facial necrosis, commonly known as facial nerve paralysis (facial nerve paralysis), is a disease characterized by motor dysfunction of facial expression muscles. It is a common disease, frequently-occurring disease, and is not limited by age. The general symptom is that the mouth is skewed, and the patient often cannot complete the movements such as raising the eyebrow, closing the eye, and blowing the mouth.

Causes of facial paralysis:

Because the passage of the facial nerve in the maxillofacial bone is very narrow, there is almost no extra buffer space. Once the facial nerve is swollen for some reason, it will be squeezed by the bones, the communication of the nerves will be blocked, and the muscles and glands functioning by the facial nerves will be impeded, leading to facial paralysis. In most cases, only one side of the facial nerve is oppressed, so the facial paralysis only appears on one side, but there are also a few people who face the right face and face at the same time.
Well, through some of the above knowledge, we generally understand what is the symptoms of facial paralysis, pouting, etc., in fact, is facial nerve paralysis, because the nerve is oppressed, then, next, we can work under the science of air conditioning, you can be sure, Is it caused by air conditioning?

Air conditioning working principle:

The air conditioner is divided into a single-cooled air conditioner and a dual-purpose air conditioner. The working principle is the same. Most of the refrigerants used in air conditioners beforehand are freon. The characteristic of Freon is that a large amount of heat is released when it changes from a gaseous state to a liquid state. When it changes from a liquid to a gaseous state, it absorbs a lot of heat. (ie, first heat absorption gasification and then liquefaction heat release) air conditioning is designed according to this principle.

The compressor compresses the gaseous refrigerant into a high-temperature high-pressure gas refrigerant, and then sends it to the condenser (outdoor unit) to become a normal-temperature high-pressure liquid refrigerant, so that the outdoor unit blows out hot air.

Then to the capillary, into the evaporator (indoor unit), because the space suddenly increases after the refrigerant reaches the evaporator from the capillary, the pressure is reduced, the liquid refrigerant will vaporize, and become a gaseous low-temperature refrigerant, thereby absorbing a large amount of Heat, the evaporator will become cold, the fan of the indoor unit blows the indoor air from the evaporator, so the indoor unit blows out the cold air; the water vapor in the air will condense into water droplets when it encounters the cold evaporator. , flow out along the water pipe, this is the reason why the air conditioner will come out.
When heating, there is a component called a four-way valve, so that the flow direction of the refrigerant in the condenser and the evaporator is opposite to that in the case of cooling, so when the heating is performed, the outdoor air is blown by the cold air, and the indoor unit is blown by the hot air.

Simply put, air conditioning is a process that changes the temperature (cooling or heating) through the flow of air through a certain principle. It does not cause any oppression to the human body.

Through the above reasons and the principle of air conditioning, we can conclude that air conditioning is not directly related to facial paralysis and sputum!

PS: Why did someone blow air conditioners in the summer? (When you open the air conditioner to heat in winter, is there no face?)

This is actually related to the skin quality of people. Some people suffer from cold, which can easily lead to paralysis of the facial nerves, which is what we often say. Therefore, when using air conditioners, do not adjust the temperature too low, about 27 degrees. Just left and right.
Source: http://www.microexist.com
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