Following his apparent suicide attempt Tuesday, accused murderer Fotis Dulos remains in critical condition in a New York hyperbaric chamber where he is being treated for carbon monoxide poisoning. Inside Edition's Diane McInerney took a look inside the renowned facility at Jacobi Medical Center back in 2009. "The door alone weighs about 700 pounds and it can fit up to nine people," McInerney says in the video above. Patients breathe in 100% oxygen inside the chamber. #InsideEdition