Mainframe Laboratory Escape

our father is working as a senior analyst in the computer laboratory. One day, you are visiting that laboratory with your friends. Your friends are going out to visit some other places and you stuck up in that area. It is a sound proof laboratory, so if you make noise no one hear that. But you remember that one of your friends told that there is an emergency exit inside the laboratory. But you need to find out the way. Can you please find the related objects and with that find out the solution to open the exit door to Escape from the Mainframe Laboratory.