How to use the internal and external circulation of modern ix25 air conditioner?

There are internal and external circulation switches on the air conditioning panel. When pressed, it means inner loop, and when not pressed, it means outer loop. The use of internal and external circulation should be combined with air conditioning and warm air. Using external circulation, you can breathe fresh air outside the car. But if you turn on the air conditioner to reduce the temperature inside the car, don't ride a bike outside at this time.

Let's talk about this outer loop first. Its function is to let the fresh air outside the car flow into the car and ventilate the car. If you don't use external circulation, you usually open the window directly for ventilation. In fact, the purpose is the same, but the effect is different. First of all, if you open the window for air, the air will come in directly. If there is sandstorm tail gas on the road, it will also enter the car. The circulating air is filtered by the air conditioning filter element of the car before entering the car.

In addition, if the car is driving fast, especially at high speed, if the wind coming in through the window is relatively strong and it is uncomfortable to blow, the circulating wind outside will be much milder.

Therefore, the first situation that requires us to go outside is driving at high speed. In addition, if it is a new car, it needs to be circulated outside often to convect harmful substances such as formaldehyde and benzene inside the car, especially when it is cold in winter and it is not convenient to open the window; Some people like to smoke in the car and circulate outside; In addition, if the cycle time in the car is long, it should be changed to external cycle every hour to make the air in the car convection.

(Photo/Text/Photo: Wang 1) @20 19