Should You Use Recirculation or Fresh Air Mode When Running Car AC?

1 Answers
ArianaDella
07/29/25 10:18pm
Whether to use recirculation or fresh air mode when running car AC depends on specific situations. Generally, recirculation mode is preferred in heavy traffic, while fresh air mode is recommended during highway driving. When fresh air mode is activated, the blower draws outside air into the cabin, which benefits passengers' health. In recirculation mode, the blower doesn't bring in outside air. For faster cooling or heating, start with recirculation mode to quickly adjust cabin temperature, then switch to fresh air mode for ventilation once temperature stabilizes. A car AC system mainly consists of compressor, electromagnetic clutch, condenser, evaporator, expansion valve, receiver-drier, piping, condenser fan, vacuum solenoid valve, idle speed controller, and control system.
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