What are the symbols for the car air conditioner's internal and external circulation modes?
4 Answers
Car air conditioner's internal and external circulation symbols are: The internal circulation symbol features a closed car interior with a circular arrow inside; The external circulation symbol shows an open car with external air arrows pointing into the vehicle. External circulation draws in outside air, heats or cools it, then delivers it inside the car, facilitating gas exchange between interior and exterior. Internal circulation recirculates the existing cabin air after heating or cooling it. The purposes of external and internal circulation are: 1. When using AC cooling or heating, activating internal circulation helps rapidly decrease or increase cabin temperature; 2. Switch to internal circulation when outside air quality is poor.
I've been driving for over a decade and can understand those air conditioning symbols at a glance. The recirculation mode is usually indicated by a car icon with a rotating arrow inside, meaning it circulates air within the cabin without drawing in outside air - great for avoiding exhaust fumes in traffic while saving fuel. The fresh air mode shows a car with an arrow pointing inward from outside, like rolling down windows to get fresh air - ideal for highway driving or rainy days to prevent window fogging. Remember to switch modes appropriately instead of sticking to one setting, and maintain good air quality to avoid stuffiness. For best efficiency, start with fresh air mode to dissipate heat before switching to recirculation when turning on the AC.
When I first started learning to drive, I couldn't distinguish the air conditioning button symbols either, but later I figured them out. The recirculation symbol shows a car with arrows circling inside, indicating the air is recirculating within the vehicle without bringing in fresh air. The fresh air symbol shows arrows entering the car from outside, meaning external air is being introduced. Daily driving requires knowing when to switch: use recirculation in city traffic to reduce exhaust fumes, and fresh air on highways to help ventilate and defog for safety. Proper use can also save fuel consumption—just remember the icons and don't overcomplicate the operation.
In our family car, maintaining health is the top priority when using the air conditioning. The recirculation symbol, represented by a rotating arrow inside the car, indicates that the air is being recirculated internally to reduce odors. The fresh air mode, symbolized by an arrow from outside the car pointing inward, means fresh air is being introduced. When picking up the kids from school and stuck in traffic, switching to recirculation mode protects us from exhaust fumes. On long drives, it's good to occasionally use the fresh air mode to maintain ventilation and prevent fatigue. Choosing the right mode ensures a comfortable and worry-free ride.
