Please note that the content of this book primarily consists of articles
available from Wikipedia or other free sources online.Anti-fog agents,
also known as anti-fogging agents and treatments, prevent the
condensation of water on a surface in the form of small droplets which
resemble fog. Anti-fog treatments are often used for transparent glass
or plastic surfaces in optics, such as the lenses and mirrors found in
glasses, goggles, camera objectives, and binoculars. Anti-fog treatments
work by minimizing surface tension, resulting in a non-scattering film
of water instead of single droplets, an effect called wetting. Anti-fog
treatments usually work either by application of a surfactant film or by
creating a hydrophilic surface.