What Air Setting to Use for Defogging Car Windows?

1 Answers
LaCarter
07/25/25 9:07am
Both warm and cold air can be used to defog car windows. Here are the relevant methods for defogging: 1. If the weather is cold, it is recommended to use warm air for defogging. The method is to first turn on the air conditioning, adjust the temperature to the warm air setting, and set the air conditioning mode to defogging. The hot air produced by the air conditioning will dry out the fog inside the car. 2. Most modern car air conditioning systems have a dehumidification function, so you can turn on the cold air dehumidification mode in the car. This will quickly dissipate the fog on the windows and is more long-lasting and faster. However, when initially using warm air for defogging, the fog may temporarily worsen, but it will improve shortly. Therefore, if conditions permit, it is better to use warm air defogging when the car is parked.
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