How to Turn on the Vehicle's External Air Circulation?
2 Answers
To activate the external air circulation in a vehicle, you can directly press the button on the central control panel. The symbol for the external circulation button is an arrow pointing from the outside of the front windshield into the car, while the internal circulation button symbol is an arrow making a circle inside the car. Generally, external circulation can be turned on when driving on highways, while internal circulation is suitable for city roads. The external air circulation draws outside air into the car, similar to opening the window for ventilation, but it filters out impurities and harmful gases from the external air, preventing them from entering the cabin and polluting the environment. Internal circulation, on the other hand, recirculates the air inside the cabin. In harsh conditions such as traffic jams or sandstorms, internal circulation helps maintain airflow inside the car, prevents stuffiness, and blocks external pollutants and harmful gases from entering.
Turning on the external air circulation is actually super easy—just press the button with an arrow pointing into the car in the air conditioning control area. The icon is usually a circulation symbol or a fresh air sign. When I drive my friend's car, I always do it this way: first turn off the internal circulation, then press the external circulation button to let fresh air in. It’s especially comfortable on long drives and prevents dizziness. The button location varies by car model—some are near the steering wheel, others on the center console—but it’s not hard to find. Using external circulation also helps defog windows. On rainy days, if the rear window fogs up quickly, just press the button and check if the windows are closed for better results. For daily use, avoid keeping it on too long to prevent dust buildup. Setting the AC to auto mode allows it to intelligently switch between internal and external circulation, while manual mode offers more control. Anyway, the operation is simple—just try it and you’ll get the hang of it.
