What to Do When the Outside of the Windshield Fogs Up on Rainy Days?

[Jonah]

When the windshield fogs up on rainy days, the following methods can help remove the fog: 1. Turn on the defroster in the car: Activate the defroster while pressing the compressor (A/C) button. This will lower the temperature inside the car, which might feel cold in autumn and winter, but the defogging effect is noticeable. 2. Turn on the warm air from the air conditioner: Increase the airflow. The dry, warm air will evaporate the moisture inside the car, preventing fog from forming on the windshield. 3. Purchase dry anti-fog wipes: Before use, wipe the windshield with a damp cloth or apply the wipe directly when fog appears. This can prevent fogging for up to 24 hours. 4. Buy wet anti-fog wipes: Wipe the fogged area directly, and it will remain fog-free for up to 24 hours. 5. Purchase anti-fog spray: Spray the anti-fog solution directly onto the windshield. The effect typically lasts around 10 days, with high-quality sprays even lasting up to a month, far outperforming anti-fog wipes.