Clearing the air on foggy eye-safety wear
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Fog-killing wipes really work. The left side of these goggles was wiped with an anti-fog treatment. The right side received no treatment. Then, both sides were subjected to warm water vapor.


I value my eyesight too much to not wear safety glasses, goggles, or a face shield in the shop. But fogging on the lenses drives me to distraction, especially when wearing a dust mask. Do you have any recommendations for keeping the fog at bay?
—Mark Finnegan, Park City, Kan.


Depending on the severity of the fogging, Mark, your solution may be as simple as buying eyewear with an anti-fog lens coating. Or switching to eyewear that has greater venting, or goggles that move the lenses farther from your face, allowing for better air circulation. Using a fan to keep the air moving around you can also help.

If those practices don't provide relief, try applying an anti-fog treatment, like those below left. In our tests, they prevented fogging entirely. A number of home remedies also work, including applying soap or shaving cream, and then buffing the lenses clear with a soft cloth. (Never use an abrasive product such as a paper towel.) Windshield rain repellents work similarly. The old trick of rubbing a bit of saliva on the lenses can work in a pinch, though the effect can be fleeting.

Anti-fog products come in several economical forms. You can buy 1 oz. of spray or 100 wipes for about $10. We find the wipes most convenient for small surfaces such as goggle lenses.

It also helps to use a dust mask with an exhalation valve that channels breath straight outward, away from your face. If you still experience fogging, try the trick shown below.

Medical tape won't win you any fashion contests, but it does effectively block leakage of warm, moisture-laden breath from the top edge of a paper dust mask.

Respirators with silicone face seals completely block exhaled breath from reaching your eyes, but they can prove uncomfortable to wear in combination with eyewear.

Fortunately, these solutions come with small price tags. But if you find these don't work for you, the ultimate solution costs a few hundred bucks. A power air shield incorporates a rechargeable-battery-powered fan that sends a continuous stream of filtered, fog-eliminating air across your face.

The ultimate in fog-busting eye protection, a powered face mask, such as this Trend Airshield, keeps the view clear and your face cool.