Is it better to use the car air conditioner in recirculation mode or fresh air mode?

1 Answers
NicoleRose
07/30/25 4:11am
Using the recirculation mode in the air conditioner can quickly cool down the car interior and block harmful gases from outside. The fresh air mode allows fresh air to enter the car rapidly, and a balanced consideration between recirculation and fresh air modes is necessary. Here is some information about the air conditioner's recirculation and fresh air modes: 1. Fresh air mode: Whether it's heating or cooling, windows are usually closed initially to quickly achieve the desired temperature inside the car. Over time, without fresh air, the air inside the car becomes stale and oxygen levels drop. At this point, the fresh air mode should be activated to allow outside air to enter the car. 2. Recirculation mode: This is typically used when the heater or air conditioner is on. Additionally, when the outside air quality is poor, it's important to switch to recirculation mode promptly to prevent harmful gases from entering the car. Exhaust gases inside the car will still be expelled through the vents.
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