How to Deal with Fogging on the Windows?
2 Answers
Turn on the heater, and the fog will disappear. Opening the window can dissipate the heat, and the fog will disappear. Apply it to the windshield, and the fog will disappear. Adjust the temperature to a close value, and the fog will disappear.
I drive my kids to and from school every day, and dealing with foggy windows is quite a headache, especially in winter or on rainy days. Fogging occurs when warm air inside the car meets the cold glass, causing condensation. The solution is simple: immediately press the defogger button—the one with the fan-shaped icon for windshield airflow—and set the air conditioning to medium or maximum fan speed. Cold air or A/C defogs faster, but I prefer using warm air when it's cold to keep the car cozy. Cracking the window slightly for ventilation also helps, but don’t open it fully to avoid rain or snow getting in. For prevention, regularly clean your windows to remove dirt that can accelerate fogging, and avoid using the heater or fan too much when humidity is high inside the car. I keep a defogging spray handy—one application lasts for weeks. Safety is the top priority: when fog obstructs your view, never speed up. Turn on your hazard lights first and pull over slowly to deal with it. Keeping the roof vents clear also helps reduce fog buildup. In short, make it a habit to test the defogging function before driving—it saves a lot of trouble.