Basically, the anti-fog spray works as it should. The glasses no longer runs on when changing from cold to warm. Only downside is the fact that forms at high humidity in warm room instead of the usual fog, a streak-like film on the glasses. While you can still see through the glasses, but everything is blurred. In addition, the glasses treated is more vulnerable to dust adhesion.
For normal everyday situations continual change from cold to warm as similar shopping the spray is suitable. Who dreams of not fogged glasses when opening the oven or the dishwasher to have will be disappointed. Although the glasses do not fog up, but one can see still nothing ...
