Should You Use Internal or External Air Circulation When Smoking in a Car?

[Amelia]

When smoking in a car, it is advisable to use the external air circulation mode. This allows outside air to flow into the car and helps carry the smoke out. Relevant information is as follows: Internal Circulation Mode: When smoking in a car, it is recommended to open the windows to allow the smoke to quickly dissipate with the airflow. The internal circulation mode helps maintain warmth in winter and keeps the car cool in summer. Activating the internal air circulation mode aids in rapidly lowering the interior temperature and prevents outside air and odors from entering the car. Consequences of Prolonged Use of Internal Circulation Mode: Extended use of the internal circulation mode can cause window fogging. If window fogging occurs, you can select the defogging mode on the air conditioning system. When defogging is activated, the dehumidification function works, and the fan speed increases. Setting the internal air circulation mode button to external circulation, increasing airflow, and raising the temperature can quickly defog the windshield and front side windows.