How to prevent glasses from fogging up

People who wear glasses must have had this experience: in winter, when the weather is cold, once there is a temperature difference, the lenses of the glasses will fog up, making our eyes foggy and unable to see anything clearly. Although fogging up glasses is not a big problem, it can be annoying if it happens frequently. So, what are the ways to prevent glasses from fogging up? Let’s take a look below.

Spray the anti-fog agent on the lens and wipe it. It can not only clean, remove dirt and prevent frost, but also has a very obvious anti-fog effect, which can generally ensure that it will not fog for one or two days. But remember, don't buy fakes for the sake of cheapness. After all, these are chemical preparations and are so close to the eyes. If you use fakes, the chemicals attached to the surface of the lens will evaporate due to heat and cause great harm to the eyes.

2. Buy an anti-fog glasses cloth

This is a specially treated glasses cloth. It may feel a little damp on the surface, but it is very effective. It not only prevents the lenses from fogging, but also protects the lens film layer very well. At present, most of the anti-fog glasses cloths in China are exported, so they basically comply with safety regulations.

Remember not to clean directly with soapy water, as that will damage the lens film. The correct way is to wipe the lenses with semi-dry, slightly soft soap, and then polish them evenly with a glasses cloth. You can also put a little detergent on the lens cloth and wipe the lenses to prevent them from fogging up.

This is the most effective, economical, safest and lowest-cost way to make your own anti-fog spray based on the principle of anti-fog spray.

You need to prepare 30ml of glycerin, 10ml of soap liquid, then add a few drops of turpentine and shake well. When using, just apply a little bit of homemade anti-fog agent on the lens, and then wipe it gently with a glasses cloth. The anti-fog effect can last for 3-4 hours. There must be many people who want to know the reason. It is because soap contains oil components. Applying soapy water on the lenses will prevent the lenses from being easily stained with water vapor. However, the anti-fogging effect will not last so long and the effect will not be so good when soap is applied directly to the glasses. Adding glycerin can slow down its evaporation.