Worker demonstrating how anti-fog spray works

Anti-fog solutions are effective for reducing and preventing fog from forming on a variety of surfaces. Typical applications for anti-fog lens treatments include prescription glasses, sunglasses, safety glasses and goggles, and safety shields. Anti-fog solutions are also effective for refrigerator and freezer doors, bathroom mirrors, windows, cameras, and binoculars.

Anti-fog sprays and gels reduce surface tension to keep water droplets from forming. While these treatments provide only a temporary fog-resistant layer, they can be the perfect solution for glasses without built-in anti-fog coatings.

How to Apply Anti-Fog Solutions

To be effective, anti-fog treatments must be applied correctly and with the appropriate frequency. In general, the following steps assure proper application of anti-fog solutions both on plastic and on glass surfaces.

  1. Clean lenses before applying anti-fog treatment. For details on cleaning lenses, see the How to Clean Your Safety Glasses blog post.
  2. Shake the solution thoroughly before applying.
  3. Apply the solution. Make sure the entire surface of the lens is covered and consider applying it to both sides of lenses.
  4. Many solutions recommend waiting a minute before wiping off the solution. Check package directions. Note that colder surfaces may require additional drying time.
  5. Wipe lenses with a dry, lint-free cloth. A wet cloth may remove some anti-fog solutions.
  6. Buff lenses with another dry, lint-free cloth until clear. This will create a clean shine.

This process will work well for most anti-fog surfaces, but there are a few caveats to consider.

Additional Considerations

In addition to adhering to the basics for correctly applying anti-fog solution, keep in mind these additional considerations:

  • Swim goggles and diving masks require special anti-fog solutions because of their constant contact with water. Other solutions will likely wash off easily.
  • Eliminating fog may not be entirely possible in extreme conditions like going from freezing temperatures to hot and humid environments.
  • Application frequency is important too. Many anti-fog solutions are easily removed with water, such as during rainy conditions, so be sure to reapply if lenses get wet.
  • For sports, apply before each event, game or practice.
  • In an environment where fog can be a constant challenge (e.g. construction, manufacturing, service), applying anti-fog solutions more than once daily may be necessary.

A Reasonable Solution

The cost for anti-fog sprays is quite reasonable. Falling just under $9, Safety Glasses USA's Anti-Fog Treatment provides a solid option for preventing fog.

With the proper tools and a consistent process, keeping glasses and other surfaces clear of fog is easy. From sports safety to safety in work environments to everyday wear of glasses and sunglasses, anti-fog solutions can help fight fog and help keep vision clear.

Anti-fogGogglesSafety glassesSafety tips

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