Foggy Windows? Make Your Own Anti Fog Pouch!

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Foggy Windows

As the weather warms, cooler mornings usually mean foggy windows in your car. But good news, we have a simple solution that works great!

It can be difficult to see and downright dangerous to drive like that. You can grab a towel to wipe it, but that usually leaves it smeared, which can be worse than just letting it sit.

I’ve started using a simple, quick, inexpensive fix that works great to eliminate the morning fog on my car windows.

Foggy Windows? Make an Anti-Fog Pouch


  • an old tube sock, preferably cotton
  • silica kitty litter (like this)


  1. Fill the sock about halfway with the silica particles, being careful not to breathe in the dust. (I do this part outside.)
  2. Tie a knot in the sock, or if you’re handy, you can sew it closed.
  3. When it’s sealed, lay it across the dash on your car. Overnight, it will absorb extra moisture in your car, leaving your windshield dry on the inside. No more foggy windows!
  4. While you’re driving, you can put it under your seat. This will work for a few months before it needs to be “recharged.”

To Recharge the Pouch

To “recharge”  your pouch, simply place it in the sun on a picnic table, deck, or other surface. Be sure to take it in before night falls, or it will get damp and you’ll need to start over. A day or two in the sun should be all it needs to dry out and start working again.

NOTE: You can use other types of kitty litter, such as the clay type, but they won’t absorb airborne moisture quite as well.

Other Uses for an Anti-Fog Pouch

The pouch is useful for more than just foggy windows. You can use it for other areas prone to dampness. In closets, under sinks, and in the bathroom are just a few ideas where it might be effective. Leave it a week or so and “recharge” using the method above.

Other Automotive Tips

Such an easy fix for foggy windows and damp areas!


About Debra Maslowski

Debra is a master gardener, a certified herbalist, a natural living instructor, and more. She taught Matt and Betsy how to make soap so they decided to bring her on as a staff writer! Debra recently started an organic herb farm in the mountains of Western North Carolina. You can even purchase her handmade products on Amazon!

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  1. Cheryl says

    Would this work for mirrors in the bathroom that got up even with the exhaust fan running when someone showers? Going to try it to see.

    • Lyn says

      I doubt it. Running the shower perpetuates the problem, it’s would not be able to absorb fast enough.