The quality of a mirror can be determined by its smooth, ideal surface; moreover, there should not be even the slightest distortion of the image or indelible deposits.
In addition, the mirror should not have various stains, clouding, air bubbles, etc.
This golden rule states the following: the width of the mirror you choose should correspond to the piece of furniture located underneath it.
In other words, when selecting the size of the selected model, focus on the width of the cabinet, dressing table, console or other furniture that is located underneath it.
To see your full reflection, you should choose a mirror whose height is not less than half your height.
The optimal mirror thickness is from 4 to 6 mm. In this case, the following rule applies: thicker is better.
Models that are too thin (less than 4 cm) do not have high strength and can become deformed and, as a result, distort the reflection.
There should not be any, even the smallest, distortions on the surface of the mirror, unless you purchase a decorative or magnifying model.
If you notice distortion on the reflective surface, the mirror is crooked and you should not buy it.