Why do glasses fog up?
This is due to the temperature difference, relatively dry and cold lenses encounter relatively hot and watery air, condensation effect will occur, in the lens surface into a fine crystal, resulting in the lens fogging, this is the reason for the lens fogging.
So how to do when the lenses are fogged up?
The solution is to reduce the surface tension of the fog beads, so that the fog beads on the lens polymerization to form an ultra-thin film of water.
Daily methods of anti-fogging of eyeglasses.
Mix 30 ml of glycerin and 10 ml of soap solution, then add a few drops of turpentine and mix well. Apply this to the lenses and dry with an eyeglass cloth, the effect can last 3-4 hours.
Apply soap solution, detergent and other surface active substances on the lenses, then wipe well with a glasses cloth to polish them. It lasts up to 2-3 hours.
Buy anti-fog lenses, anti-fog lenses can effectively reduce the liquefaction of lenses, is a good choice for anti-fog. Easy to carry and use at any time.
Dilute alcohol and water, in a ratio of 1:3, and then wipe on the lenses, and after a period of time, then gently wipe a few times with an eyeglass cloth, you can achieve a good anti-fog effect.