How to Turn on the External Air Circulation in a Car?
3 Answers
To turn on the external air circulation in a car, simply press the external circulation button on the center console. The button is marked with an arrow pointing from the outside of the front windshield into the car. The external circulation mode uses a fan to draw outside air into the car. The air blown by the fan comes from outside the vehicle, and even when the fan is off, airflow is still drawn into the car while driving, replenishing the interior with fresh air. The car air conditioning system is an air conditioning device installed in the vehicle, capable of cooling, heating, ventilating, and purifying the air inside the cabin. It provides a comfortable environment for passengers, reduces driver fatigue, and enhances driving safety.
Turning on the car's fresh air mode (external circulation) is actually quite simple, and I do it often while driving. On the climate control panel, there's a button with an arrow pointing from outside to inside the car—that's the external circulation symbol. Just press it until the indicator light turns on. For older models, it might just be a simple toggle button; newer cars may have this option in the touchscreen menu under air circulation settings. Why use external circulation? For example, it helps defog windows on rainy days by bringing in fresh air, or prevents stuffiness in summer traffic jams when internal recirculation makes the cabin feel hot—switching to external circulation feels more refreshing. Safety note: Wind noise increases with external circulation at high speeds, so avoid distractions while adjusting. I recommend regular maintenance of the cabin air filter to ensure cleaner air during external circulation. Having driven my own car for years, this feature really helps prevent dizziness, especially on long trips. Find a parking spot to practice first—familiarize yourself with the controls for a comfortable ride.
As an urban commuter, turning on the fresh air mode is part of my daily routine. Locate the climate control area near the steering wheel or dashboard, look for the button with an icon showing air flowing into the car from outside - when pressed and illuminated, it indicates fresh air mode is active. Recirculation mode only circulates interior air, while fresh air mode brings in outside air, which is crucial for maintaining cabin freshness. During my daily commute, I activate fresh air mode in tunnels or polluted areas to reduce exhaust fume inhalation; it also helps defog windows during rain. Operation is quick: most cars have physical buttons - mine sits next to the climate control knob for one-touch activation. Pro tip: regular cabin air filter checks optimize fresh air mode efficiency. A few practice runs will make it second nature without compromising driving safety. Beginners should experiment with both modes on low-traffic roads to feel the ventilation differences.
