How to prevent hotel doors from being opened by staff?

We call it "door bump" here, which is installed behind the door near the ground, and a small magnet should be installed behind the door. As soon as the door is opened near the wall, the door is attracted by the magnet, which not only prevents the door from being blown to fail to close, but also prevents the door handle from damaging the wall.

What should the hotel do when the door is opened by others? First rule out whether the cleaning staff is cleaning, and then let the staff retrieve the surveillance video of the channel. If he wants to enter through the door, he must take the tunnel. Remember to check his belongings.

If you want to prevent the door from being opened from the outside, you can set an anti-lock in the room. Most doors have anti-lock buttons. Indoor anti-lock: There are many methods of indoor anti-lock, depending on the specific type of lock. Some locks can be pressed, some turn the handle once, and some turn it twice with the key. This kind of indoor lock is mainly to give the owner a private space. After the lock is locked, people outside can't enter the door even if they have the key, so they have to knock on the door to let people inside open the door.