Which is the external circulation mode in a car's AM setting?
1 Answers
In a car, 'M' stands for the external circulation mode. Here is some extended information about the internal and external circulation modes of a car's air conditioning system: 1. High-speed driving: When driving on highways with all windows closed, the air inside the vehicle cannot circulate. Turning on the external circulation allows outside air to enter the vehicle, improving the freshness of the air inside. 2. Air conditioning: During high-speed driving, the external circulation has little effect on the air conditioning's performance, but using it during regular air conditioning operation can reduce its effectiveness. 3. Windshield: Fogging on the windshield is mainly caused by high humidity inside the vehicle. Turning on the external circulation can continuously supply fresh air, maintaining moderate humidity inside the vehicle and making it less prone to fogging.