How to tell if a mirror in a hotel is double-sided?

When you go out to stay in a hotel, you must pay attention to personal privacy security. It is not ruled out that some small hotels will deliberately manipulate the rooms to infringe on the privacy of guests for profit, such as pinhole cameras, double-sided mirrors, etc., we are staying here When it comes to hotels, you should pay special attention to inspections. It is best to find a regular hotel to stay and don't be greedy for cheap. So how to judge the double-sided mirror in the hotel? 1. How to tell whether a mirror is double-sided in a hotel

1. Point your finger to the surface of the mirror, and then observe whether there is a gap between your finger and the finger in the mirror. Usually, those with gaps are ordinary mirrors, and those without gaps are double-sided mirrors.

2. Turn off all the lights in the room, then stand in front of the mirror and observe whether there is any light in the mirror. Typically, a regular mirror can only see the light from your own room, while a double-sided mirror can see the light from the other side.

3. Place the makeup mirror on the hotel mirror and observe the colors illuminated by the two mirrors. If the portrait in the hotel mirror is too dark, it indicates that it is a double-sided mirror; but if the color is the same or similar, it is an ordinary mirror. 2. What are the dangers of double-sided mirrors?

Due to the special nature of double-sided mirrors, they are often used by criminals for peeping, so they are very dangerous and can invade privacy. Double-sided mirrors, also called single-sided transparent glass, are made of ordinary glass by adding a thin film of metallic chromium, aluminum or iridium through vacuum coating. Double-sided mirrors are widely used in prisons, public security interrogation rooms, psychiatric hospitals, university research institutes, large conference rooms, etc. They cannot see the outside from the inside, but can see the inside from the outside. 3. If there is no gap between the fingers, does it have to be a double-sided mirror?

Not necessarily. This method can only identify part of the double-sided mirror and is not completely effective. Like some single-sided stainless steel mirrors, it will be mistaken for a double-sided mirror when distinguished with your fingers, because it has the function of an ordinary mirror to reflect light and organize the appearance, so there is no distance between the finger and the mirror. Therefore, the method of checking the imaging distance with your fingertips is not completely applicable to all mirrors.