Atlantis has several medical facilities, (though it is unclear if the Ancients were originally intended for medical use, or if the Atlantis expedition simply chose to use these rooms for their own needs). These rooms house many different medical devices, most of them from Earth, but some left over by the Ancients. The rooms also hold possibilities for medical and biological research. The primary medical facility is a large room meant to watch over several patients. There are additional facilities (including an adjacent room) where people can recover, as well as a single room for treating only one person while other people can watch from above through a large glass façade.