The room is mostly darkened except for the illuminated spot which is similar to where Steve was trapped in the lower floor's bastille, except that this room isn't as long. A chair with restraints and a giant axe added to the restraints, along with a button to its side.
The room is first seen by Claire from the director's office, above it, with Nosferatu still restrained. Later on, after Claire's confrontation with Alfred Ashford in the mining room, Nosferatu starts screaming while forcing his way out of the restraints who was able to cut loose, pushing away the giant axe. He starts walking away and destroys the door.