How to Turn on the Car's External Air Circulation?
4 Answers
Method to activate the car's external air circulation: Simply press the external circulation button on the central control panel. Below is relevant information about the air conditioning's internal and external circulation: 1. External Circulation: The external circulation primarily serves the purpose of ventilation. Therefore, this function should be activated when the air inside the vehicle is not flowing smoothly. During high-speed driving, if the car is sealed and only internal circulation is used, it can easily lead to insufficient oxygen inside the vehicle. This may cause driver fatigue, inability to concentrate, and pose potential safety hazards. 2. Internal Circulation: The internal circulation mainly functions to promptly and effectively prevent external dust and harmful gases from entering the vehicle. For example, when driving through areas with smoke, dust, unpleasant odors, or in heavy traffic, it blocks harmful exhaust emissions from vehicles ahead. Another function is to maintain warmth.
As a veteran driver with over a decade of experience, I find using the external air circulation mode particularly important, especially in areas with poor air quality. The operation is simple: locate the outward-facing arrow button or icon on the dashboard's climate control panel, usually marked with a symbol resembling external airflow. Press it to activate, and the system will draw in fresh air from outside. I often use it during rainy days—when windows fog up, activating external circulation quickly clears the mist, improving driving visibility. On long drives, increased CO2 levels inside the cabin can cause drowsiness; switching to external air circulation refreshes the mind and enhances focus. If there’s an unpleasant odor after opening the car door, I’ll also run the external circulation for a few minutes to clear it out. However, in heavy traffic with high exhaust emissions, it’s best to switch back to internal circulation to avoid pollutants. Make it a habit to briefly activate external circulation after starting the car before adjusting settings—it’s practical for both health and comfort. All car models have this feature; if unsure about the button location, check the manual or refer to forums for guidance.
I use the fresh air mode (outside air circulation) daily during my commute to keep the cabin air fresh. Activating it is simple: locate the button on the climate control panel with an outward-pointing arrow symbol – pressing it switches to external air intake. I find it most comfortable to use on highways or in areas with good air quality, as it allows fresh airflow into the cabin, reducing odors and bacterial growth, which is particularly helpful for combating fatigue during long drives. Briefly activating it when using AC in summer prevents stuffiness, while in winter it provides exceptionally quick defogging. A practical tip: after city driving, turn on fresh air mode for a few minutes upon restarting to flush out residual pollutants. Though recirculation mode saves fuel, prolonged use leads to stagnant air and odors, so I regularly switch to fresh air mode for ventilation. Button placement varies by vehicle but follows similar logic – if you can't locate it, try the touchscreen or rotary controls. Maintaining this habit makes driving more comfortable and enjoyable.
From a health perspective, activating the external air circulation is crucial for in-car air quality. The operation method is to locate the outward arrow button on the climate control panel and press it to activate the mode. This allows outside air to enter, reducing carbon dioxide buildup and preventing drowsiness or motion sickness. I frequently use this feature when traveling with family, especially during rain or when windows fog up – activating it immediately helps clear the air quickly. During long trips, poor air circulation increases fatigue risk; enabling external circulation ensures oxygen supply for greater physical comfort. Though just a simple button, it offers multiple benefits. Note: use moderately during pollen season or in polluted areas to avoid allergens.
