How to Solve Car Window Fogging?
1 Answers
To address car window fogging, use anti-fog spray by applying a small amount onto the car glass and then wiping it dry. Utilize air convection; due to seasonal temperature differences between the inside and outside of the car, the warm and humid air inside encounters the cold windshield, then reheats, leading to condensation and fog formation. Alternatively, use the car's heating system by turning on the warm air and directing it towards the glass to quickly raise the temperature of the front windshield. When the relative humidity in the air reaches 100%, water molecules in the air condense into particles suspended in the atmosphere. These water droplets refract light, similar to how high-density suspended particles in the air scatter natural light in countless directions, creating a natural light barrier. Whether it's sunlight or artificial light sources, the infinite refraction caused by water droplets obstructs visibility, which is why foggy conditions result in low visibility. The same principle applies to water fog on car doors, with the difference being that numerous tiny water droplets do not remain suspended in the air but instead condense on the window beforehand. This occurs due to vapor cooling, condensation, and the continuous impact or displacement of surrounding air by the moving car. If the interior of the car is warm, the inner surface of the window glass heats up, while the outer surface is cooled by the cold external air, with the cooling effect surpassing the heating capacity inside the car.
