How to Eliminate Fog While Driving on Rainy Days?

[AdelineDella]

Methods to eliminate fog while driving on rainy days include: 1. Keep a damp towel in the car and use it to wipe away fog when it appears inside the vehicle; 2. If fog is caused by a significant temperature difference between the inside and outside of the car, open the window to equalize the temperatures; 3. When the windshield fogs up, switch the air circulation system to external circulation; 4. Turn on the automatic climate control system; 5. Spray an anti-fog agent on the windshield to form a protective film; 6. Turn on the air conditioner's cold air. The reasons for fogging in a car are: 1. Under certain humidity conditions, when the window temperature is below the dew point, condensation forms on the window surface; 2. A temperature difference on either side of the window causes the saturated vapor pressure on the cooler side to be lower than the surrounding environment's vapor pressure; 3. Moisture gathers on the glass surface, forming tiny droplets that create fog.