How to Use Internal and External Air Circulation with Air Conditioning On
2 Answers
Here are the methods for using internal and external air circulation with air conditioning: 1. Use internal circulation during traffic jams and external circulation during high-speed driving; 2. The use of internal and external circulation should be combined with air conditioning and heating; 3. Use external circulation during long-distance driving to allow fresh outside air to enter the cabin, preventing oxygen levels inside from becoming too low; 4. When temperatures are high, turn off the fan and open external circulation to maintain cabin temperature while allowing fresh air in; 5. Set to internal circulation when using air conditioning in summer; 6. Use internal circulation when driving in the city; 7. Close external circulation in dusty road conditions to block outside airflow.
Using the air recirculation and fresh air modes properly in your car's AC system is quite important. I often think about this during my daily commute. The recirculation button is usually on the AC panel, marked with a circular arrow icon. Press it, and the air inside the car circulates on its own. It's suitable when there's heavy exhaust or pollution outside, like during traffic jams on highways—keeping the air fresh and saving some fuel. The fresh air mode brings in outside air, which I switch to when the windows fog up or the cabin feels stuffy, such as in the early morning or after long drives, helping with ventilation. In summer, I use recirculation more often as it cools faster and consumes less energy; in winter, I alternate between modes to avoid excessive dryness. Regularly switching between modes maintains comfortable cabin air, a habit that enhances my driving experience, especially for health protection.
