For over 20 years Perry Baromedical has held the honor of manufacturing the largest monoplace hyperbaric chamber in the industry, with the introduction of the SIGMA 36, Perry holds the added distinction of manufacturing the two largest monoplace hyperbaric therapy systems. The larger chamber sizes provide the patient with a more pleasant treatment experience. Confinement anxiety and other complications will be reduced if treatment is performed in the larger, more patient-friendly chambers.