What does rearview mirror heating mean?

The meaning of automobile rearview mirror heating is as follows: 1, and rearview mirror heating refers to heating the rearview mirror through the electric heating wire embedded behind the lens when the automobile is driving in rain, snow, fog and other weather to ensure the clear surface of the lens; 2. When driving in foggy, rainy and snowy days, fog on the rearview mirror area, frost accumulation in winter or rain intrusion caused by fog will make the driver's sight at the opposite rear unclear, and it is not only extremely inconvenient, but also seriously affects driving safety. It is only a temporary measure, and fog and rain will immediately blur it; 3. For the rearview mirror with heating function, when encountering the above situation, the driver only needs to turn on the heating and defrosting button, and the rearview mirror will be heated (generally around 45℃) to remove the fog and frost on the lens surface, so that the rearview mirror can be seen at a glance, which not only saves a lot of trouble, but also improves the safety factor when driving. At present, this kind of rearview mirror with heating function is equipped in medium and high-altitude cars in China.