Is the light on for internal or external circulation?
2 Answers
The light on indicates internal circulation, while the light off indicates external circulation. The internal circulation mode of the car air conditioner seals the airflow ducts inside the vehicle, effectively preventing toxic gases and dust from entering the cabin during traffic jams. Additionally, the internal circulation mode can reduce the car's fuel consumption. The external circulation mode opens the air ducts of the car, drawing outside air into the cabin. It is recommended to use the external circulation mode more frequently during long-distance driving to maintain air circulation and supply fresh air. The car air conditioner is an air conditioning device installed in vehicles, and its functions include: 1. Cooling, heating, ventilating, and purifying the air inside the cabin; 2. Providing a comfortable environment for passengers; 3. Reducing driver fatigue and improving driving safety.
When I first started driving, I often didn't understand what the light meant. Later, I learned that the light indicates you've activated the recirculation mode, which means the air inside the car is being recirculated to prevent external dust or exhaust fumes from entering. This is especially useful in traffic jams. I personally use recirculation mode in urban areas or heavily polluted places to reduce inhaling those unpleasant odors. However, be aware that keeping it on for too long can cause windows to fog up, especially in humid weather. So I usually only turn it on when needed and keep the fresh air mode on normally to breathe fresh air. Remember, safety first—don't let the air get too stuffy, as it can affect your concentration.
