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Where does the outside air enter in a car's external circulation system?

1 Answers

McFernando

07/29/25 3:07pm

The air for the external circulation in a car's air conditioning system enters from below the windshield or from the engine compartment. The external circulation symbol is an arrow pointing from outside the car to the inside. However, many car models nowadays do not have a dedicated external circulation button. This does not mean the function is absent; rather, manufacturers simplify the design by defaulting to external circulation when the internal circulation button is not pressed. Below are four functions of a car's air conditioning system: 1. The air conditioner can control the temperature inside the cabin, heating or cooling the air to maintain a comfortable level. 2. The air conditioner can remove humidity from the air, drying it to absorb sweat and create a more comfortable environment. 3. The air conditioner can intake fresh air, providing ventilation. 4. The air conditioner can filter the air, removing dust and pollen.

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