Do you need to turn on AC to defog your car in winter?

[Juliet]

In winter, you don't need to turn on AC to defog your car. AC is the compressor switch, which is the air conditioning cooling switch. Pressing this button will activate the car's air conditioning to cool. Here are the methods to defog your car in winter: 1. Open the windows; 2. Use defogging spray; 3. Turn on the warm air of the air conditioner; 4. Activate the car's defogging function; 5. Apply a mixture of dish soap and water or soapy water to the windows; 6. Place a dehumidifier box inside the car; 7. Wipe with a towel. Additional information: The reason for car fogging is the temperature difference between the inside and outside of the car. The higher temperature inside the cabin compared to the outside causes water vapor in the cabin to condense on the inner windshield, forming fog.