
When smoking in a car, it's better to use the fresh air mode (external circulation). This allows outside air to flow into the vehicle while helping to expel the smoke from the cabin. Relevant information is as follows: Recirculation Mode: When smoking in a car, it's recommended to open windows whenever possible to allow smoke to quickly dissipate with airflow. The recirculation mode helps maintain warmth in winter and keeps the cabin cool in summer. Using air recirculation mode can quickly lower interior temperatures and prevent outside air and odors from entering the vehicle. Consequences of Prolonged Recirculation Use: Extended use of recirculation mode may cause window fogging. If window fogging occurs, you can select the defogging mode on your air conditioning system. When defogging is activated, the dehumidification function works and fan speed increases. Set the air recirculation button to fresh air mode, increase airflow and raise temperature to quickly defrost the windshield and front side windows.

It's better to use the external air circulation when smoking. The internal air circulation mode just recirculates the air inside the car, causing the smoke to linger and fill the cabin with an unbearable stench. In contrast, external air circulation draws in fresh air from outside and expels the smoke, allowing you to breathe cleaner air. I must say, smoking itself isn't a good habit, but if you're going to do it, at least don't let it affect your driving. When the smoke gets thick, visibility can even become blurry, and using external air circulation helps ventilate the cabin faster. Smoking for long periods without using external air circulation can harm your lungs, waste fuel, and leave a lingering odor on the car's interior. It's advisable to make this a habit every time you smoke for the sake of your health.

As an experienced driver, I recommend turning on the external air circulation or simply opening the window when smoking. The internal circulation mode is suitable for use during traffic jams or when the outside air quality is poor, as it allows the air conditioning to cool or heat the car more quickly. However, when smoking, using the internal circulation mode traps the smoke inside the car, and within minutes you'll notice the irritating smell of smoke filling the cabin. Turning on the external air circulation allows fresh air to be drawn in by the blower, helping to expel the smoke through the vents. At high speeds, it's safer not to open the windows, so just use the external circulation. I've found that following this method significantly improves the air quality inside the car. Remember, a car is an enclosed space, and poor ventilation is not good for your health.

Turning on the external air circulation when smoking is more reasonable than using internal circulation. Internal circulation traps the smoke inside, making the entire car feel like a steamer. Using external circulation draws in fresh air to help dissipate the smoke, preventing a sharp decline in air quality inside the vehicle. From a health perspective, reducing secondhand smoke exposure benefits everyone. Simply switching to external circulation mode is usually just a matter of turning a knob.


