Which Button is for the External Air Circulation?

[ElijahLynn]

It is a car symbol with an arrow pointing from the outside into the car, which represents the external air circulation button. When the vehicle's air conditioning or heating system is activated, using the external air circulation allows outside air to enter the car, providing ventilation. External Air Circulation: In the external air circulation mode, a fan draws air from outside the vehicle into the interior, meaning the air passage between the outside and inside of the car is open. The air blown by the fan comes from outside, and even if the fan is not turned on, airflow is still drawn into the car while driving, replenishing fresh air inside the vehicle. Function of External Air Circulation: When the air inside the car is stale, using the external air circulation allows fresh air to enter, effectively improving the air quality inside the vehicle. This is especially useful for new cars, as it helps eliminate odors. In rainy weather, using the external air circulation prevents fogging on the windshield and other windows, enhancing driving safety.