How to Use Car Interior and Exterior Circulation?

[Taylor]

When turning on the air conditioning for cooling or heating, you can first activate the interior circulation to quickly lower or raise the temperature inside the car. Once the temperature stabilizes, appropriately switch to exterior circulation to allow fresh air to flow in. Here are some introductions about car interior and exterior circulation: 1. Interior Circulation: If the air conditioning is used to lower the temperature inside the car, do not turn on the exterior circulation at this time. You can occasionally switch to exterior circulation to let in some fresh air. 2. Exterior Circulation: Using exterior circulation allows you to breathe fresh air from outside the car. If the warm air in winter feels too hot, you can turn off the fan and open the exterior circulation to maintain the interior temperature while still getting fresh air.

[VanAaron]

While driving, I frequently switch between recirculation and fresh air modes to maintain cabin comfort. The recirculation button closes the external air intake, which is ideal for urban traffic jams or severe air pollution—it blocks exhaust fumes and odors while making the AC cool faster. Fresh air mode opens the intake to bring in outside air, such as during highway driving to prevent CO₂ buildup that causes drowsiness, or to quickly dehumidify when windows fog up. I adjust based on road conditions: use fresh air more often in rain or fog, and recirculation in dusty areas to protect respiratory health. But avoid prolonged recirculation—switch to fresh air when the cabin feels stuffy. Regular maintenance includes replacing the cabin air filter to ensure smooth airflow.

[Travis]

I often go on self-driving tours, and the air circulation function is simple yet practical. Use the recirculation mode in tunnels or industrial areas to block out external odors; switch to fresh air mode in open suburban areas to breathe fresh air. Operation is as easy as pressing a button in the car, with icons typically resembling arrows circulating inside the car or pointing outward. From a safety perspective, recirculation prevents pollutants like PM2.5 from entering, making it ideal for children or those with allergies; fresh air mode aids ventilation and helps prevent driver fatigue. In vehicles with automatic climate control, pressing the AUTO button intelligently toggles between modes, eliminating manual hassle. Recommended usage: use fresh air mode when air quality is good, and recirculation when it's poor, maintaining a comfortable and healthy cabin environment. Environmentally speaking, recirculation saves energy and reduces fuel consumption, but don’t neglect regular ventilation.

[LeAlaina]

I drive to work every day, and the operation of the air recirculation is super simple. Press the recirculation button to block outside air, which is suitable for quickly purifying when someone smokes in the car or when there are strong odors. Press the fresh air button to introduce fresh air to defog or ventilate. On the highway, I use fresh air to prevent fatigue; in traffic jams, I switch to recirculation to avoid pollution. Models with automatic air conditioning will automatically manage it when the AUTO button is activated. For maintenance, check the air filter for cleanliness every quarter to ensure high circulation efficiency.