How to Stop Glasses and Cycle Helmets From Fogging

Written by heather finch
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No matter how many times you try, walking backwards into a building does not keep your glasses from fogging up, and the fog that accumulates on your cycle helmet creates a big safety hazard. Fogging happens because there is a difference in temperature between you and the outside, and is usually blamed on breathing. However, your fogging issues won't be stopped by holding your breath (which is a dangerous option to say the least) because heat from your sweat is still enough to do the trick.

Skill level:
Moderately Easy

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Things you need

  • Anti-fog product
  • Dishwashing liquid
  • Clean cotton cloth
  • Potato

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    Use What You Have

  1. 1

    Keep moving. The effect of wind or movement can help prevent fogging---but this doesn't mean you should run any stoplights. You should be aware that a lot of fog on your glasses and cycle helmet will dissipate as you move.

  2. 2

    Purchase a helmet with vents. While this will not help your glasses, a helmet that has better air circulation is less likely to get fogged up. It is, however, more likely to let in dust or annoying wind.

  3. 3

    Apply a thin layer of dishwashing soap. Use a clean cloth to rub on a drop of dishwashing soap on each lens of your glasses, or a few drops on the plastic of your helmet. Buff the soap using a second clean cloth until your lens or helmet are clear.

  4. 4

    Rub a slice of potato or apple on your helmet or glasses. Let the juice dry and buff clean with a clean cloth.

    Apply a Specialty Product

  1. 1

    Purchase a speciality product at your local cycle shop. A product comparison test performed by demonstrates Salclear to be an effective product, while Rick Sieman from suggests using Smith No-Fog.

  2. 2

    Read the directions on the product. Anti-fogging agents come in cloths, sprays, gels and liquids. While cloths and sprays have easiest application, gels and liquids tend to last longer.

  3. 3

    Clean your helmet or glasses. Use a soft cloth to remove any debris. If you have noticed a lot of hazing caused by an oily substance on the glass, wash the glasses or helmet in warm water with a bit of dishwashing soap.

  4. 4

    Follow the directions on the product. Most products will require that you buff the surface until clear. Make sure you keep buffing until your glasses or cycle helmet give you clear visibility. For some products, this can be a lengthy process.

Tips and warnings

  • Avoid products with harsh chemicals as these may cause your eyes to burn even when dry.

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