Do you know how to choose Led anti-fogging mirror ?
First of all, let’s take a look at why there is fog and how it is formed?
When people take a shower, the shower water temperature is about the same as the body temperature, between 35℃-40℃, the surface temperature of the bathroom mirror is slightly lower than the room temperature, the larger temperature difference and humid air after the shower, this is caused by the bathroom Two necessary conditions for mirror fogging.
Because the room temperature is lower in winter, the temperature difference between the bathroom mirror and the air is greater, so the fog formed is thicker, and it takes longer to dissipate naturally.
Secondly, why do we need to defog ?
Just imagine, when you are ready to comb your hair in the mirror after taking a shower, you find that the mirror is foggy and you can’t see anything. Is it very depressed, let alone putting on makeup in the mirror.
Then the mirror should not only be anti-fog, but also meet the needs of makeup most of the time. Most of the lights in the mirror cabinets on the market are used for decoration, and cannot meet the needs of makeup. Either the lighting position is not good or the brightness is insufficient. At that time, the advantages of the LED bathroom smart mirror were revealed~
Finally, how to defog?
First of all, let us look at the reasons for the fogging of bathroom mirrors, and we can analyze how to prevent fogging:
Principle 1: Reduce the humidity of the air;
Principle 2: Reduce the temperature difference between water vapor and bathroom mirror (increase the surface temperature of bathroom mirror);
Principle 3: Let the fog fail to form on the surface of the bathroom mirror
The first is a coated anti-fog lens, which is composed of coated micropores to prevent the fog layer. The anti-fog coating is made of conductive material ATO and silicon oxide, which can form a good hydrophilic effect. In addition, anti-bacterial agents that can avoid static electricity have many effects such as anti-fog, anti-pollution and avoiding static electricity;
Through the formation of the mist layer of the microporous structure of the coating, it theoretically has the effects of anti-fog, anti-fouling and anti-static, but most of these coatings can last for a short time.
The second type is electric heating anti-fog lens. This type of lens is heated by electric heating to make the humidity of the mirror surface higher, so that the fog layer can not be formed naturally, and the fog can be rapidly increased;
The most effective method to eliminate fog is to heat the mirror itself by electricity to reduce the temperature difference. When there is no fog, the mirror surface can be heated to prevent fog, and when it is foggy, the heating can remove the fog. The time except the fog is related to the heating power. But it should be noted that too much heating power and too fast temperature change may cause problems such as cracking of the mirror.
The third type is the nano-composite anti-fog lens, which uses the separation of chemical and physical principles, and then allows it to be firmly bonded to the glass, so that there is no way to form water drops, and naturally they can reach you. The anti-fog effect you want.