How to Solve Fogging When Using Air Conditioning?
2 Answers
Fogging can be resolved through methods like anti-fog sprays. Here are specific solutions for defogging: 1. Open the windows: When the fog is not heavy, you can appropriately open both side windows to allow air convection, which eliminates the temperature difference on both sides of the windshield, making it difficult for fog to form. 2. Use the blower: Blowing cold air provides a quick but temporary solution, while blowing hot air can fundamentally solve the problem of window fogging. 3. Use an anti-fog spray: The principle of anti-fog spray is simple. Spraying a layer on the windshield forms an effective protective film, preventing the condensation of water mist.
As a seasoned driver with over a decade of experience, I have a go-to method whenever the windshield fogs up with AC on: Fogging usually occurs due to high humidity inside the car condensing on the cold glass. Immediately press the defrost button (the one with the fan-shaped icon) to blast strong cool air that directly dries the glass; simultaneously turn off recirculation to let outside air in and reduce humidity. I also keep a small desiccant bag on the dashboard to absorb moisture, and on rainy days, I pre-warm the car before turning on the AC. Additionally, dirty glass fogs up more easily—I regularly clean the interior side with newspaper dipped in cleaner, which is cost-effective and efficient. Don’t forget to check the cabin air filter; replace it every six months to prevent mold buildup that worsens the issue.
