Shopping & Style2 mins ago
anti-fogging mirrors
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How do anti-fogging mirrors work?
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For more on marking an answer as the "Best Answer", please visit our FAQ.The mirror is sprayed with a liquid - a surfactant - which dries to form a clear film. When water hits a mirror, it would normally form beads. But with a surfactant the beads run together and you can see through it. A surfactant is a chemical, a form of detergent, that lowers the surface tension of water.
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