What is the most important thing in summer? Of course the air conditioner! As the saying goes, when the weather is 38 degrees, I would rather cry in an air-conditioned room than laugh under an electric fan, unless the two are driven together...

In summer, many people feel that their entire life is given by the air conditioner. Air conditioners are an important "life-sustaining artifact" in summer. There are also many messages about air conditioners on the Internet, many of which are misleading.

Especially for the temperature of the air conditioner, although the air conditioner is cool, it also consumes a lot of electricity. After a whole summer, your electricity bill may be a "big sum".

Some people find that controlling the air conditioner to a certain temperature not only saves electricity, but also makes it particularly comfortable to stay in the room, without feeling hot or cold, and sleeping better at night, but this temperature is not what most people think 26°C.

warn! Long-term in the air-conditioned room, it is easy to cause 5 major problems

1. Respiratory system diseases

If the air conditioner is not cleaned and replaced in a timely manner, it is easy to breed various bacteria and molds. When cold air passes through the pipes and coils, the water vapor tends to condense inside and produce black mold.

These molds can be the cause of a variety of respiratory problems, such as pneumonia, Legionnaires' disease, and more.

2. Fatigue and headache

Some people feel more fatigued, lethargic and have headaches than usual after being in the house all day, but all symptoms disappear once they leave the building. This is not necessarily because of wanting to be lazy, but it is likely to be "sick house syndrome".

Sick house syndrome is a combination of workplace or housing-related illnesses that may include: itchy or red eyes, cough, itchy or sore throat, wheezing, rashes, itchy skin, blurred vision or sense of smell exception, etc.

Most of the "sick house syndrome" is related to poor indoor air quality, and air-conditioning may be one of the culprits.

3. to be infected

According to the Environmental Protection Agency, there may be more sources of pollution indoors than outdoors, and the fact that dirty air has been circulating in the house through the air conditioner is likely to increase the chance of human body being infected by germs.

Many household air conditioners do not inject fresh air during operation, but return warm indoor air to the air conditioner, and after the air conditioner cools, it emits cold air. This means that people who stay indoors are breathing continuously circulating air.

If there is mold, dust, animal dander in the air, or someone in the same space with an airborne virus or bacteria, it's easy to get sick.

4. Dry skin

The longer you stay in an air-conditioned room, the drier your skin will be, and your hair will become drier and frizzier. Because the warmer air in the room contains a certain amount of humidity;

However, the water vapor will encounter the refrigeration pipe in the air conditioner, condense into a liquid, and flow to the outside along the water pipe, and the water molecules in the indoor air will be reduced. The water flowing out of the outdoor pipe is the moisture reduced by the indoor air.

5. Epidemic

Two studies published in the International Journal of Epidemiology in 2004 showed that people who stayed longer in air-conditioned rooms had greater demand for health care services. These patients mainly see ENT, respiratory diseases and skin problems, and these people also take more sick leave.

Is the air conditioner temperature of 26°C the most energy efficient?

Many people think that adjusting the temperature of the air conditioner to 26 degrees saves electricity, but experiments have proved that many people are wrong.

If the temperature of the air conditioner is adjusted to 26 degrees, the electricity bill it uses is much less than when it is 20 degrees. In this way, many people will indeed regard 26 degrees as the most energy-efficient temperature for air conditioners.

But if you increase the temperature of the air conditioner by one more degree, that is, to 27 degrees, you will find that it saves about 30% of the electricity compared to 20 degrees, which is more than the energy saving of 26 degrees.

But many people insist that 26 degrees is the most energy-saving temperature for air conditioners. Even though many data have proved this view to be wrong, people are still willing to believe it. Why is this?

26 degrees is indeed not the most energy-efficient temperature, but it is the most comfortable and healthy temperature for humans. The air conditioner saves electricity, not because the higher the temperature, the more electricity it saves. If the temperature is too high, it will consume more electricity.

In the same way, if the air conditioner temperature is too low, it will also consume more electricity. Therefore, research has proved that 26 degrees is not the most energy-efficient temperature for air conditioners.

What is the best degree to turn on the air conditioner when going to bed at night?

Experts say: 27 ℃ is the most suitable.

In summer, due to the sun exposure, we will control the temperature of the air conditioner at about 25 degrees Celsius. At night, the outdoor temperature begins to drop, and the human body's activity decreases after falling asleep. Everyone enters a sleep mode. At this time, no matter the outdoor temperature Or the body's response to heat, we've all entered a plateau.

Turn on the air conditioner to sleep at night, the temperature does not need to be too low, the temperature around 27 ℃ is the most suitable. Many people like to turn on the air conditioner to 24 ℃ at night and sleep under a quilt, not to mention that this practice is not energy-saving, nor is it beneficial to their own health.

Even if the temperature of the air conditioner is adjusted to 27°C, you should cover the chest and abdomen with a cool summer quilt to prevent the chest and abdomen from getting cold and causing a cold, cough or diarrhea. Nowadays, inverter air conditioners all have their own intelligent sleep mode, which does not need to be set by yourself. After reaching a certain room temperature, the air conditioner switches to sleep mode by itself.

In the sleep mode, the cold air blown by the air conditioner is softer, the work efficiency begins to slow down, and the human body feels more comfortable. And after the second half of the night, the room temperature is basically stable, and the sleep mode is both energy-saving and healthy.

Although the air conditioner brings convenience to our high-quality sleep, the temperature of the air conditioner that is too low can also cause discomfort to the human body. Therefore, the temperature of the air conditioner at night does not need to be too low, just 27°C.