Tips to Stop Windshields from Fogging Up

windshield foggy

Driving with a foggy windshield can be extremely dangerous, as it reduces visibility and can cause accidents. It can also be frustrating to deal with on a daily basis. 

In this article, we’ll explore the causes of windshield fogging up and provide you with expert tips on how to stop it from happening.

Causes of Windshield Fogging Up

The most common reasons why windshields fog up are differences in temperature and humidity, moisture inside the car, and a dirty windshield

When the air inside the car is warmer and more humid than the air outside, it can cause condensation to form on the windshield. 

Similarly, if there’s moisture inside the car due to wet clothes or spilled drinks, it can also contribute to fogging. 

Finally, if the windshield is dirty, it can make it harder for air to circulate, leading to fogging.

Ways to Stop Windshields from Fogging Up

There are several ways to prevent windshield fogging up:

  1. Use of Air Conditioning or Defrost: One of the easiest and most effective ways to prevent windshield fogging up is to use the car’s air conditioning or defrost function. The air conditioning helps to remove moisture from the air, while the defrost function directs warm air onto the windshield to clear any condensation. To use these functions effectively, make sure that the air is circulating within the car and that the temperature is set to a comfortable level.
  2. Anti-Fog Solutions: Anti-fog solutions are available in various forms, such as sprays, wipes, and gels. These solutions work by creating a barrier that prevents moisture from condensing on the windshield. To apply the solution, clean the windshield thoroughly, then follow the instructions on the product.
  3. Keeping the Windshield Clean: Keeping the windshield clean is essential to preventing fogging. Use a good quality glass cleaner and a microfiber cloth to clean the windshield inside and out regularly. Avoid using harsh chemicals that can damage the windshield or leave streaks.
  4. Other Methods: If you’re looking for alternative methods to prevent windshield fogging up, there are a few options. For example, you can place a sock filled with cat litter on the dashboard, as the litter will absorb moisture from the air. Another option is to apply shaving cream to the inside of the windshield, then wipe it off with a clean cloth. The shaving cream will leave a residue that prevents condensation from forming.

Precautions when Stopping Windshield from Fogging Up

While the above methods are effective, it’s important to take precautions when using them. 

For example, when using anti-fog solutions, make sure to follow the instructions carefully and avoid getting the product on other surfaces. 

Additionally, it’s important to keep the car well-ventilated to prevent moisture buildup. Finally, when using alternative methods, make sure to use them safely and avoid any potential hazards.


Windshield fogging up is a common problem faced by drivers, but there are several solutions available. 

By using air conditioning or defrost, anti-fog solutions, keeping the windshield clean, or other methods, you can prevent fogging and ensure clear visibility while driving. 

Remember to take precautions when using these methods and enjoy a safer, more comfortable driving experience.

Looking for more things you can use to clean your windshield? Try toothpaste. Read How to Use Toothpaste to Clean Car Windshield.

Thanks for reading my blog.

-Baking Soda Guy

Image by StockSnap from Pixabay