How to Use an Anti-Fog Spray

Anti-fog sprays prevent glass or plastic from fogging. They also clean the surface of the glass or plastic and prevent the surface from attracting dust. The spray is most commonly used for glasses, safety goggles, and ski masks, especially in areas that are cold or dusty. Additionally, the spray works on CDs, DVDs, LCD screens, mirrors, and car windshields. The spray will not remove any coatings that are already present on the surface of the device.

Things You'll Need

  • Lint-free cloth
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Instructions

    • 1

      Use a lint-free cloth to remove any dirt, dust or debris from the surface before applying the spray.

    • 2

      Spray the surface until it is completely covered. If spraying glasses, be sure to spray both sides. Do not spray the outside of windshields, as rain will wash the coating away.

    • 3

      Buff the surface with a clean, lint-free, cotton cloth until it is dry.

    • 4

      Reapply the coating at least three times a week. Reapply every other day if in humid conditions.

    • 5

      Use less spray if the surface smears. Use more spray if the surface fogs up.