How to Turn on the Natural Air Mode in Car Air Conditioning?

[SanCali]

Generally, there is a button for internal/external air circulation in the car. Simply press the external circulation button until its light turns on to activate external air circulation. To turn off external circulation, press the external circulation button until its light turns off, which deactivates the external air circulation mode. If the external circulation button light is on, it indicates external circulation is active. Press the internal circulation button until its light turns on to switch to internal circulation mode. Press it again until the light turns off to return to external air circulation mode.

[McMiranda]

When driving, if you want the air conditioner to blow natural air, the method is actually quite simple. My habit is to first look at the air conditioning control panel and turn the temperature knob to a position similar to the outside temperature, usually around 25 degrees. This way, the system won't activate cooling or heating. Next, turn off the AC button, which is the compressor switch. Turning it off allows the air to flow naturally through the fan without adding cold or heat. Then adjust the fan speed—medium speed is usually sufficient, as it's not too noisy and provides good ventilation. Don't forget to turn on the external circulation button to let fresh air in, which helps the air inside the car circulate faster and makes breathing more comfortable. I often do this in spring or autumn, especially during sunny days when the sunlight is warm. Turning off the AC also saves a bit of fuel and reduces the load on the engine. If the air feels not cool enough or too hot, it might be due to dust clogging the vehicle's ventilation system. Regularly cleaning the air filter can prevent this issue. Maintaining this practice makes driving more relaxed and comfortable while also extending the lifespan of the air conditioning system.

[MacSophie]

Since last year, I've been exploring the natural air setting for car air conditioning, mainly to reduce fatigue during long drives. The key is to turn off the cooling function: locate the AC button on the center console, press it to turn it off, indicating the compressor stops running. Then set the fan speed to medium to avoid noise interference with music or conversation. Finally, adjust the temperature knob to near ambient temperature—around 26°C in summer and 22°C in winter is sufficient. My wife often complains that driving with warm air makes her dizzy, and this method perfectly solves that issue, saving fuel and promoting health. Actually, in older cars, aging wiring can sometimes affect the external circulation air flap; cleaning the air intake can prevent dust buildup. Using natural air more often benefits in-car air quality—don’t always keep the internal circulation on. It only takes three steps to operate, and it’s especially useful on highways.

[MacMaci]

I usually use the natural air mode in my small car, and the steps are straightforward: after starting the car, turn off the AC light, which is the key step to keep the refrigerant inactive; then adjust the fan speed to the first level, not too high to save power; finally, turn the temperature knob to the middle position. The whole process takes just a few seconds, and I often do this on my way to school—it saves fuel and is simple. It feels especially comfortable in warm weather without drying out my throat. Remember to change the cabin air filter regularly to keep the air cleaner.