Anti-fogging – why do sunglasses fog up and what are the solutions.

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Fogging is caused by a “phase change” of water vapour to liquid. This occurs almost exclusively when warmer air meets a cooler surface. So if you use your LiP Watershades in a cold water environment, read on…this advice is for you! For watersports sunglasses, the main cause of fogging is when warm air from your …

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