Why is there still airflow when the recirculation mode is on?
1 Answers
This situation is quite normal because the recirculation mode cannot completely isolate external air. Recirculation mode: Recirculation mode refers to the closed-loop circulation of interior cabin air, while fresh air mode involves air exchange between the interior and exterior. Use recirculation mode in congested traffic or poor air quality environments. On highways, you should switch to fresh air mode approximately every hour to renew the cabin air and prevent oxygen deprivation. Function of recirculation mode: It allows interior air to circulate in a closed system; the cabin air is reheated or recooled before being redistributed. Generally, whether using heating or cooling, you should first activate recirculation mode. However, prolonged use of recirculation mode will lead to increased carbon dioxide levels from passenger exhalation despite temperature regulation. Therefore, switch to fresh air mode every hour to ventilate the cabin.