Oxygen tents, hoods, incubators, and hyperbaric chambers are featured.
Topical oxygen is sometimes labeled as topical hyperbaric oxygen therapy, but this is incorrect. In hyperbaric oxygen, the entire body is exposed to supra-atmospheric pressure and the patient is exposed to increased oxygen pressure by ventilation--thus the increased oxygen pressure is delivered to the wound by perfusion. In topical oxygen therapy, the oxygen is provided to the surface of the wound, and oxygen is delivered to the wound by diffusion at the skin's surface. The mechanisms of oxygen delivery are thus completely different. Advocates for this type of therapy cite decreased costs and increased safety for its usage over hyperbaric oxygen therapy. Since neither CMS nor private payors reimburse for this therapy it has fallen into relative disuse.