Wearing masks causes glasses to fog due to a process of vaporization. This is because the water vapor exhaled from the mouth encounters the cold glass of the glasses and vaporizes into tiny raindrops, which adhere to the glass of the glasses. How can we prevent glasses from fogging while wearing a mask?

Due to the appearance of water droplets, it blocks the light source of the myopia glasses, and the light entering our eyes becomes significantly weaker, making it difficult for people to recognize objects.

How can we prevent or reduce the fog on glasses? In the past, I read an article about movie shooting, where scenes from summer were shot in winter. It was easy to say that the clothing shelves were good, but as soon as someone spoke, their mouth would release white gas. The white gas here is actually the water vapor exhaled from the mouth, which condenses into tiny raindrops when cooled and suspended in the air.

To solve this problem, it is said that some famous actors put ice in their mouths before speaking, and then spit it out after the ice melts, and then start acting and speaking, so that it is not easy to exhale white vapor.

As everyone knows, the ideal way is to create a super-low temperature environment in the mouth, causing water vapor to vaporize in the mouth, so that very little water vapor is exhaled from the mouth, and the tiny droplets are hardly visible.

These 5 simple and effective methods of preventing glasses from fogging are expected to be of some help to you.

1. Both sides of the lens are evenly coated with detergent, and then gently wiped with toilet paper. This can prevent the exhaled hot air from directly contacting the lens, thereby causing fog.

2. First take off the glasses, and then blow two breaths of warm air towards the glasses, making the temperature of the lens close to the oral temperature, and then wipe with dry toilet paper. It can be carried after that.

3. Medical Vaseline is applied to the glass surface.

4. Fresh egg white is wiped on the inner surface of the glass, and then dried before use. The drawback is that it is easy to accumulate dirt after 1-2 months.

5. There are professional anti-fog agents on sale, with the price in the market generally around 10-30 yuan for a small bottle.

Of course, you can choose a very simple method, wearing an extra mask. On the one hand, it can make the top of the mask fit the face more closely, thereby reducing the water vapor coming from the top; on the other hand, one needs to pay attention to the fact that the current single protective mask is too thin and will be quickly heated by the exhaled gas.

Subsequently, the water vapor in the exhaled gas cannot be vaporized when passing through the protective mask, thereby causing a large number of tiny droplets to condense on the glasses. By improving the protective mask, the surface temperature of the protective mask is relatively unaffected by the exhaled gas, maintaining a relatively low temperature, and most of the water vapor in the exhaled gas will vaporize when passing through the protective mask.

The tiny droplets formed by the condensation of glasses will be greatly reduced. It is a fact that in the past, protective masks made of double-layer gauze did not have the problem of fogging on glasses.

Whether it is a cloth mask or a medical mask, including the N95 protective masks often mentioned recently, there are ‘anti-fog masks’. In other words, anti-fog lenses actually involve the modification of a water-absorbing sponge in the area of the nose.

The self-sealing property of this type of protective mask is relatively good, and with the addition of this water-absorbing sponge, it can block the water vapor exhaled from the nose and mouth, preventing the glasses from fogging. This type of protective mask is relatively friendly to people who wear glasses, but with the current shortage of protective masks, it may not always give us the opportunity to choose!

There is also the fact that the lens of glasses does not need to be touched with force, as there is oil on the hands, nor should one arbitrarily use clothes, pants, or general paper to wipe the glasses. Firstly, it may not be cleaned thoroughly, affecting vision, and secondly, it may carry bacteria and other microorganisms to the lenses, causing eye inflammation.