the abandoned factory

Steven wakes up in what appears to be a small room. It's similar to a single-room apartment, but without a restroom or kitchen. Just a plain table with a box on table that seems a little out of place, and what looks to be some kind of device on the wall with hoses and ports. There's a door that appears to be partly jammed open to the north of the room, and a small ladder to the south, leading to what seems to be a service vent. where white arrows have been painted on the sides of the open vent, its door on the floor by it.

Steven, while sitting up from the rigid frame that was his bed, finds that he's been stripped of his clothing and has a cuff on his right arm with the number 1915 written in white print. As he got up from the stiff bed frame, he could only remember that he was doing some urban exploring and now…. He was here in this strange cell in what should have been an abandoned factory that not even the locals dare to get near.

What should Steven do?