Abstract: An exercise with oxygen therapy (EWOT) apparatus for rejuvenating oxygen-depleted cell tissue and simulating high altitude oxygen conditions. The EWOT apparatus includes a first cylindrical bladder for providing oxygen-enriched air and a second bladder for providing lower-purity hypoxic air. The first bladder is retained within an open, lightweight rectangular-shaped frame having vertical frame members. An air supply source provides the oxygen-enriched and hypoxic air to the first and second bladders, respectively. A control switch, which can be manually and/or programmed to automatically operate, selectively delivers the oxygen-enriched and/or hypoxic air to a breathing mask worn by a user while exercising on exercise equipment. The first bladder includes a plurality of weights which provide a positive pressure to the air therein.

Abstract: The invention relates generally to a circular bladder system for exercise with oxygen therapy (EWOT). The circular bladder design supplies, controls, and/or select between two or more airflows with one bladder that is cylindrical and collapsible within a frame; and the other bladder that is mounted atop the frame. The bladder contains different oxygen levels and pressures to simulate different altitudes.