How to Use the External Circulation?
3 Answers
During long-distance driving, the air inside the car can become stale over time. In such cases, you should turn on the external circulation to bring fresh air into the vehicle. After purchasing a new car, the interior usually has a strong odor. At this time, you should use the external circulation as much as possible to quickly dissipate the harmful gases inside the car.
Using the external circulation mode is quite simple. Just locate the button with an arrow pointing outward on your car's air conditioning control panel - I frequently use this feature while driving to keep the cabin air fresh. After starting the vehicle, simply press that button; some vehicles even have an indicator light that illuminates to show you're using external circulation. Remember to activate it when there are many passengers or odors in the car, like during long trips with friends - it draws in fresh air to eliminate stale smells. It's particularly useful when outside air quality is good, such as in rural or suburban areas. Avoid using it in heavily polluted city centers or during traffic jams to prevent inhaling exhaust fumes. This feature greatly helps maintain alert driving, and the operation is extremely straightforward - you'll get the hang of it after a few tries.
I believe the key to using the external air circulation lies in the weather and environment. Personally, I prefer turning it on when ventilation is good. For example, right after starting the car or after parking, pressing the external air circulation button can quickly dissipate the stuffy air inside the car—especially during spring or autumn with a light breeze, as the external air circulation brings in fresh outside air, making the cabin more comfortable. If there's smoke or odors inside the car, turning on the external air circulation can effectively blow them away. However, it's best to avoid using it during sandstorms or in industrial areas to prevent inhaling dust. From a safety perspective, keeping the external air circulation on during long highway drives can help prevent dizziness and increase alertness. In short, flexibly switching between external and internal air circulation can enhance the overall driving experience.
