How to Remove Fog Inside the Car on Rainy Days?

1 Answers
DanielaDella
07/28/25 6:01pm
Fogging on rainy days is caused by the car window temperature being below zero or a temperature difference between the two sides of the window. There are five solutions: spraying anti-fog window spray, using air conditioning cooling, using air conditioning heating, using anti-fog wipes, and employing rain deflectors to assist in defogging. The detailed methods are as follows: 1. Spray Anti-Fog Spray: Spray a small amount of anti-fog spray onto the car window and wipe it clean to remove dirt and stains. While polishing the glass, it forms a thin transparent protective film that effectively prevents water vapor from condensing into fog on the glass, especially suitable for cold winters. 2. Air Conditioning Cooling: There are two reasons for window fogging in winter: low temperature and high air humidity. Using the cooling effect of air conditioning to reduce air humidity can remove window fog. Owners can turn on the air conditioning to blow cold air toward the front windshield and use the dehumidification function to eliminate fog. 3. Air Conditioning Heating Method: In winter, blowing hot air onto the glass with the heater can quickly raise the temperature of the front glass and reduce the temperature difference between the inner and outer surfaces, preventing excessive fogging on the front windshield. 4. Anti-Fog Wipes: Generally divided into ordinary anti-fog wipes and anti-fog wet wipes. The difference is that ordinary anti-fog wipes can only be used when fog has already formed on the windshield, while wet wipes can be used directly to prevent fogging. 5. Rain Deflector Assistance Method: Rain stains on side mirrors that are exposed for a long time are often difficult to clean. For defogging purposes, many owners of models without side mirror heating functions choose to install rain deflectors on their side mirrors.
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