Should You Use Internal or External Air Circulation When the Car Interior is Humid?
1 Answers
To dehumidify the car interior, use the internal air circulation mode. Internal circulation quickly removes moisture from the car, while external circulation allows humid outside air to enter, making dehumidification slightly slower. Therefore, to quickly defrost and dehumidify, simply turn on the internal circulation. Internal Circulation: The internal circulation mode of a car's air conditioning system draws air from inside the car into the air conditioning compressor, compresses it, and then blows it back into the car. Use internal circulation when the outside air quality is poor or heavily polluted, such as on dusty roads, in congested traffic, or near chemical plants where there are foul odors or unpleasant smells, to prevent outside air from entering the car. In summer, using internal circulation helps the air conditioning cool the car interior more quickly. External Circulation: The external circulation mode of a car's air conditioning system draws air from outside the car into the air conditioning compressor, compresses it, and then blows it into the car. Periodically turning on external circulation allows fresh air to enter the car. When there are many passengers inside, using external circulation helps maintain fresh air and prevents excessive humidity inside the car, which can cause windows to fog up.
