The Narcosis Experience Coming to Letts Dive!! in Fall 2020! Dr. Joseph Dituri, former Navy Saturation Diving Officer,will be bringing the mobile hyperbaric chamber to Letts Dive!! Dr. Dituri spent 27 years in the Navy, before retiring and pursuing PhD in Biomedical Engineering. He performs research in the field of hyperbaric medicine and diving maladies. The Chief Researcher for the Undersea Oxygen Clinic and instructor through the International Board of Undersea Medicine, Dr. Dituri will teach a class on what narcosis REALLY is, followed by a "dive" in the chamber up to 165 feet of sea water! Join the team from Letts Dive!! and let's feel the effects of narcosis together!