Why does the fire department require the hotel room to be connected?

Fire requires hotel rooms to be connected to the door mainly for safety reasons. The conjoined door creatively installs two doors together through a frame, and the doors open in opposite directions respectively. This design not only facilitates family and friends to use the hotel room at the same time, but also improves the safety of use. In addition, the design of communication door also plays the role of fire prevention of room partition wall.