Which function should be turned on to expel smoke when smoking in the car?

[MacRemington]

When smoking in the car, you can turn on the external circulation mode to expel smoke. This is because activating the external circulation mode allows outside air to flow into the car while also carrying the smoke inside the car out. Additionally, it is recommended to open the windows when smoking in the car, as this helps the smoke to quickly dissipate outside with the airflow. The hazards of smoking in the car are as follows: Easy to cause carbon monoxide poisoning: When the vehicle is in a closed state, the operation of the car engine itself produces harmful gases such as carbon monoxide, which can flow into the car and harm human health. If smoking occurs under these conditions, the concentration of carbon monoxide in the car can reach more than 30 times the normal level, easily causing symptoms such as dizziness, fatigue, and nausea. In severe cases, poisoning may occur. Shortens the usage cycle of the pollen filter: The air conditioning system is equipped with a dust and pollen filter to filter and purify the air entering the system. However, this device cannot completely absorb the harmful gases produced by smoking. On the contrary, the large amount of smoke generated by prolonged smoking can shorten the normal usage cycle of the dust and pollen filter.

[Mitch]

When I smoke in the car, the smoke builds up quickly. Using the air conditioning's external circulation mode is most effective because it brings in fresh outside air and pushes the smoke out, unlike the internal circulation mode which just recirculates the air inside and makes the smoke smell stronger. I also make a habit of slightly opening the front windows or sunroof to assist, which doubles the speed of clearing the smoke. If you don't do this, the smoke smell will stick to the seats and air conditioning system, becoming unpleasant over time and harming your health. It's advisable to avoid smoking in the car as much as possible, but if you must, turning on the external circulation and opening the windows for a few minutes can clear the smoke. The air quality inside the car is important and shouldn't be overlooked. Additionally, modern cars may have air purification systems that can be used in combination for better results, but the basic operation is primarily about using the external circulation mode.

[DelAthena]

When driving with my family, I often feel the urge to smoke, but for the sake of my children's health, I use the external air circulation function to quickly expel the smoke. The external circulation introduces outside air to remove smoke, preventing lingering odors. Compared to internal circulation, which recirculates polluted air, it's much worse. Opening windows provides instant relief, but the system's function is more reliable. Remember, smoking in the car is harmful to the respiratory system, so it's best to avoid it. However, if it's unavoidable occasionally, just activate the external circulation. After smoking, keep the external circulation running for a few more minutes to thoroughly eliminate the smell before closing the windows and continuing to drive. Protect the car's environment to prevent unpleasant odors from affecting your mood the next time you drive. While smoking may relieve stress, health comes first, and using external circulation is an essential technique.

[ORobert]

I smoke in the car, and turning on the air recirculation function is enough. Set the air conditioning to external circulation mode to introduce outside air and expel smoke. Don't use internal circulation, as it will allow smoke to accumulate. Opening the windows slightly can accelerate airflow, but the core solution lies in the system's functionality. Some new cars come with air purifiers, turning them on provides additional assistance. This method is simple and efficient, requiring no professional knowledge.