Should You Use Recirculation or Fresh Air Mode When Driving in Summer?

[HannahAnn]

In summer, the correct way to operate your car's air conditioning is: first turn on the fresh air mode (external circulation) to expel the hot air inside the vehicle. Once you feel a noticeable drop in cabin temperature, switch to recirculation mode (internal circulation). Recirculation system: The air exchange channel between inside and outside the vehicle is closed. When the fan is off, air doesn't circulate inside the cabin. When the fan is on, the airflow drawn in comes solely from inside the vehicle, creating internal air circulation. Fresh air system: In fresh air mode, the fan draws outside air into the vehicle. The air blown by the fan comes from outside, and even with the fan off, moving the vehicle still draws in outside air to replenish the cabin with fresh air.