1. Select the appropriate air conditioning temperature. Of course, in summer, many people like to set the temperature very low. However, when the temperature is adjusted too low, it will affect health, so the air conditioning temperature must be adjusted appropriately. The most suitable temperature for human body is 20 ℃ to 25 ℃, and people will feel sultry if it exceeds 28 ℃. And below 14 ℃, people will feel cold. Therefore, the air conditioner should control the temperature in the vehicle between 18 ℃ and 25 ℃, and too low temperature is easy to make people sick.

2. Start the internal circulation immediately after entering the vehicle in summer. When the car is parked for a long time in the hot sun, some owners like to turn on the air conditioner and turn on the internal circulation as soon as they start the car, believing that this can make the temperature in the car drop faster. However, because the temperature inside the car is higher than that outside the car, the effect is not good. When you first enter the car, you should open the window for ventilation and open the external circulation to exhaust the hot air. After the temperature in the compartment drops, it will be replaced with internal circulation.

3. People all know that air conditioners should be used in a fully enclosed state. The same is true for automotive air conditioners. If the doors and windows are not closed tightly during use, the cooling effect will be poor and fuel will be wasted.

4. The direction of the air outlet can be adjusted at will. Some car owners do not pay attention to adjusting the blowing direction of the air conditioner when using the air conditioner, which is not conducive to the best effect of the air conditioner. According to the principle of cold air sinking and hot air rising, the correct approach should be to turn the air outlet upward when turning on the cooling air and downward when turning on the heating air.

5. Keep the air conditioner on for a long time. Some car owners often turn on the air conditioner after getting on the bus, but using the air conditioner for a long time will make the condenser pressure too high, which will cause losses to the refrigeration system, because the air conditioner is a heavy burden on the engine, and the engine itself is a heating body, not to mention in high temperature weather. In this case, some small displacement cars may even have water boiling, which affects driving and reduces the efficiency of air conditioning. Therefore, the air conditioner should not be used for too long each time. If the temperature in the car has reached a comfortable temperature, you can turn off the air conditioner and turn it on again later.

6. Do not smoke in the car with the air conditioner on. Because of smoking in the compartment, the smoke can not be discharged at once, which will stimulate the eyes and respiratory system, and is not conducive to health. If smoking, the air conditioning and ventilation control should be adjusted to the "discharge" position, so that the smoke in the compartment can be discharged out of the vehicle.