1. Do not close the doors and windows as soon as you get in the car and turn on the air conditioner.
Many car owners turn on the air conditioner directly when they get in the car, and keep the doors and windows closed. In fact, the cooling effect is not ideal. We'd better open the car windows for a while in advance to ensure the air circulation in the car. And usually the temperature inside the car may be higher than outside the car, which can also have an initial cooling effect. If you rely entirely on air conditioning for cooling, not only will the speed be slow, but it will also increase the burden on the engine.
2. Pay attention to ventilation when turning on the air conditioner.
In the minds of many people, air conditioning must be turned on in a relatively closed space so that the air conditioner will not "escape". However, being in a relatively confined space for a long time also reduces the air quality in the car. The consequence of this is that it makes people drowsy, or causes various pains, and causes "air conditioning disease".
It may also be one of the reasons for accidents for drivers. Therefore, we can choose external circulation after the internal temperature has dropped almost to ensure fresh air in the car. Of course, if you encounter a dusty place with a worse environment, you still have to choose internal circulation. This also applies when the air conditioner is not turned on.
3. Don't change the temperature and wind direction as you wish.
Some friends are greedy for coolness. In summer, they like to lower the air conditioner temperature very low and blow the fan towards themselves. By doing so, you may not be able to take care of other passengers in the car. Secondly, it is unscientific and unhealthy. Generally speaking, the time we drive is also fragmented. Sudden cold and sudden heat may more easily cause heatstroke, colds, etc., which is harmful to health.
Therefore, it is best for us to keep the temperature of the air conditioner in the car constant, so as not to create a large temperature difference with the outside of the car, as long as it does not feel very hot. Also pay attention to adding clothes to help prevent air conditioning disease. Moreover, the same is true if the fan keeps blowing on itself. According to the principle that hot air rises and cold air falls, we adjust the direction of the air outlet. Doing so can also have better results and save more fuel.
4. Don't sleep in the car.
Generally, when the air conditioner is turned on in summer, the doors and windows are closed, so the air is not circulated very well. If you fall asleep in the car, you will not be able to sense and respond to abnormalities in time. As people in the car breathe, the carbon dioxide concentration will continue to increase and the oxygen content will decrease, and suffocation may occur.
Furthermore, harmful gases such as carbon monoxide may also be produced in the car, and poisoning may also occur. If you are taking a short break in the car, at least open the windows, otherwise you may not wake up again.