Is it good to use a door in door for an anti theft door?

In general, it is better to use a door-in-door. The so-called [door in the door] is to open a small door on the fire prevention and anti-theft door, nail the screen window on the newly opened door opening, and then press a closed door at the screen window inside the anti-theft door. When ventilation is needed, it is turned on and closed when it is not needed.

The door-in-door is generally suitable for houses with a double-yang pattern, which can play a role in ventilation, but the relative anti-theft performance and warmth performance will be reduced. If you choose a door-in-door, please choose a door-in-door, because the door-in-door that can meet the Grade A standard is relatively safe, so there are fewer such Grade A door-in-doors.

However, it is true that it is not convenient to open and close the door when there are guests coming when the small door is opened for ventilation. In this way, when you usually open and close the door and leave, you don't have to push a door that is too big; Or half of the double doors are too small to pass. When it is necessary to pass through large objects such as furniture, it can be opened in its entirety.