Should I Use Hot or Cold Air to Defog the Car?

1 Answers
AaronRose
07/30/25 4:01am
In winter, when fogging occurs inside the car, warm air should be used to defog. If fogging occurs in summer, cold air should be used. Hot air can also defog, but it may take a longer time. Whether it's summer or winter, opening the car windows can quickly defog the car. Here are some additional tips on defogging: 1. Open windows for convection: Opening windows for convection is a convenient and quick method to defog by lowering the temperature inside the car. However, this method has certain limitations and is not practical in rainy, snowy, or heavily foggy weather. 2. Use the rear windshield and side mirrors for defogging: Currently, many car models are equipped with rear windshield heating features, which can clear fog in about a minute.
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