How to Use the Car's Recirculation Mode?
3 Answers
The method to use the car's recirculation mode is: press the recirculation button inside the car. In recirculation mode, the air exchange channels between the inside and outside of the car are closed. When the fan is off, the air inside the car does not circulate. When the fan is on, the air drawn in comes from inside the car, forming an internal air circulation. The purpose of the car's recirculation mode is to block out polluted air, prevent external gases from entering the car, and ensure clean air inside the vehicle. The functional buttons in the car include: 1. Headlight washer button: used to control the automatic headlight cleaning function; 2. Parking sensor button: press this button to manually control the parking sensors; 3. Central locking button: the control button for the car's central door locks.
In the driver's seat, I noticed that the car's recirculation button is usually located on the air conditioning control panel, marked with a circle icon with an arrow or a similar symbol. Pressing it lightly activates the recirculation mode, and a small light on the dashboard may illuminate to remind me that the air is only circulating inside the car. I often use it in heavy traffic or when passing through areas with smoke or dust, as it blocks external polluted air from entering, keeping the interior cleaner. When activated, the air conditioning cools or heats more efficiently, especially on hot days, allowing the car to cool down quickly. However, avoid keeping it on for too long, especially when carrying multiple passengers, as the air can become stuffy, leading to dizziness or lack of oxygen. It's recommended to switch back to fresh air mode (outside air) every 20 minutes or so to maintain fresh air inside the car. I also noticed that some cars have an automatic mode, where the system intelligently switches between recirculation and fresh air when AUTO is turned on.
I use the recirculation mode quite frequently, especially during rainy days or high smog seasons, as it helps filter out external moisture and pollutants, making driving more reassuring. On long highway trips, I also activate it to reduce wind noise interference. To turn it on, simply press the recirculation button on the control panel—the icon is easy to recognize. However, remember not to keep it on continuously, as stagnant air inside the car can lead to carbon dioxide buildup, causing drowsiness during prolonged driving. In terms of temperature control, such as warming up the car in winter, using recirculation mode heats up the interior faster. After use, make sure to turn it off—developing this habit is beneficial for health.
