In winter, should the car air conditioning use internal or external circulation?
1 Answers
In winter, whether to use internal or external circulation for the car air conditioning depends on the situation: use internal circulation for short trips and external circulation for long trips. Internal and external circulation in cars refer to: 1. Internal circulation means the air conditioning system is closed to external air and can only circulate the air inside the car; 2. External circulation means the car air conditioning system is open to external air and draws in outside air for circulation. The functions of car air conditioning are: 1. To cool, heat, ventilate, and purify the air inside the car; 2. To provide a comfortable environment for passengers, reduce driver fatigue, and improve driving safety.