Fogging of glasses occurs when we come into a heated room from outside in winter, when we drink a hot beverage, or when we open the dishwasher. In short, anywhere the cooler surface of the glasses meets warmer air. Thanks to effective anti-fogging solutions in the form of sprays, you can significantly reduce this unpleasant phenomenon. Anti-fog sprays need to be sprayed on both sides of the eyeglass lenses, allowed to sit for a moment, and then wiped with a cleaning cloth for glasses. These sprays also protect the glasses and do not contain undesirable components or cause unwanted distortion. You can use them not only to clean glasses but even optical weapon sights, which can also be prone to fogging in certain situations.