What do A and M stand for in car air conditioning?
1 Answers
In car air conditioning, A represents the automatic mode, and M is the forced external circulation mode. Here are the detailed explanations: 1. When the air conditioning is in A mode, the car air conditioning will automatically switch between internal and external circulation modes based on air quality: Car air conditioning is a crucial configuration in a vehicle. It can provide both cooling and heating, and is essential for use during both winter and summer. 2. The external circulation mainly serves the purpose of ventilation, so this function should be activated when the air inside the car becomes stale: During high-speed driving, if the car is sealed and only internal circulation is used, it can easily lead to insufficient oxygen inside the vehicle. This can cause the driver to become fatigued, lose concentration, and pose a potential safety hazard. Therefore, it is advisable to turn on the external circulation during high-speed or long-distance driving.