Should You Turn on the AC in Winter?

[VictoriaFitz]

You should not turn on the AC in winter. The AC is the cooling switch for the car's air conditioning system. Theoretically, when this button is pressed, the compressor of the air conditioning system starts working. For ordinary household car air conditioning systems, the compressor-driven air conditioning can provide cooling or heating functions. However, the compressor in a household car's air conditioning system is only responsible for cooling and cannot provide heating. The function of the AC is to activate the compressor, whose role is limited to cooling and dehumidifying. When the temperature knob is turned up, the AC's compressor no longer provides cooling but only dehumidification, as the car has its own heat source, making the compressor unidirectional. Car air conditioning refers to the air conditioning device installed in a vehicle, which can cool, heat, ventilate, and purify the air inside the cabin, providing a comfortable environment for passengers, reducing driver fatigue, and improving driving safety.