How to Defog Goggles

Written by brittany tucker
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How to Defog Goggles
Prevent your goggles from fogging up by investing in a pair of fog-free or thermal lens goggles. (skiing goggles image by timur1970 from

Participating in a sport or activity while wearing foggy goggles can endanger your health and the overall well-being of others. Fog forms when water vapour in warm, moist air condenses to create tiny water droplets on a smooth, cool surface. Instead of letting light through, the droplets tend to scatter light in different directions and as a result the goggles become blurry and hinders vision. Consider trying a variety of different methods to ensure your goggles remain defogged and in good working condition.

Skill level:
Moderately Easy

Things you need

  • Toothpaste
  • 2 Rags
  • Storebrand defogger
  • Band aids
  • Fog-free/thermal lens goggles

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  1. 1

    Rub the goggles down with toothpaste. The toothpaste will remove the manufacturer's film from the goggles and help prevent them from fogging up. Squeeze out a small dab of toothpaste on each lens. Take a clean rag and gently rub the toothpaste in a circular motion until each lens is evenly covered. Let the toothpaste sit or soak onto the lens for a few minutes. Wipe the toothpaste from the goggles with another clean rag.

  2. 2

    Spit on the goggle lens. Your saliva will defog the goggles and prevent them from becoming foggy. Wipe the goggles clean or run them through tap water before replacing them on your face.

  3. 3

    Spray a store-brand defogger on the goggles. Defoggers are devices used to clear condensation or fog from window surfaces. You can purchase a defogger from automotive stores. Re-spray the defogger on a regular or as needed basis for lasting success.

  4. 4

    Place a few band aids along the interior perimeter of the goggles. Band aids contain Polychloroprene, a chemical that helps increase air pressure inside goggles. Increased air pressure will prevent your goggles from fogging up.

  5. 5

    Invest in a quality pair of fog-free or thermal lens goggles. A thermal lens is essentially a double paned lens and helps prevent goggles from becoming foggy.

Tips and warnings

  • When rubbing the toothpaste on the goggles, avoid scrubbing the lens hard or you'll end up damaging or scratching the surface.
  • Fog-free or thermal lens goggles may still fog up over time, so use caution when investing in these particular types of goggles.

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