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Best® CR 1975 anti-fogging spray the surface to fill the inside of the lenses and the liquid hover over the glass. When wet the entire inner surface with the liquid 3-5 min. Wait to dry. Liquid frozen to death during this time will become a transparent layer. This layer will not fog glasses. The loss of the effect of inner face of the mask layer depending on usage conditions.repeat the operation for a long time.
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