When to Use the Car's Internal and External Air Circulation?

1 Answers
MacCharlie
07/29/25 8:47am
Internal air circulation means only the air inside the vehicle is recirculated, while external air circulation allows fresh air from outside to enter the vehicle. Below is a detailed introduction: 1. Introduction: Internal circulation recirculates the air inside the car, driven by the blower. External circulation connects the interior with the outside air. The internal circulation symbol displayed on the screen indicates the car is currently in internal circulation mode. Pressing the internal circulation button again while it is active will turn it off, switching the car to external circulation mode. 2. Applicable Scenarios: Use internal circulation during traffic jams; switch to external circulation for long highway drives.
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