How to Keep Windows Fog Free

Clean foggy windows with rubbing alcohol.

Fog is a common problem that builds up on windows. Whether it be vehicle windows or house windows, fog is typically caused by excess moisture, humidity or heat on one side of the window and cold temperatures on the other. Often a problem during cold winter months and steamy, rainy summer days, use something on all your windows to keep them fog free.

Things You'll Need

• Spray bottle
• Ammonia
• Rubbing alcohol
• Dish soap
• Water
• Cleaning rags

Instructions

1. Mix 2 cups water, 1/2 tsp. ammonia, 2 tbsp. rubbing alcohol and five drops of dish soap in a spray bottle.

2. Spray this solution over the windows and wipe down with a clean rag.

3. Store the bottle and use as needed to keep all windows fog free. The combination of rubbing alcohol and ammonia has an anti-freeze quality that prevents fog from developing.

References

• Michigan State University: Anti-Fogging Glass Spray