oxygen recycling system comprised of CO2 scrubbers, gas mixing apparatus, check valves, tubing, sensors, blowers, oxygen masks, oxygen and exhalation bags, and breathing hoses, for use in direct association with medical or therapeutic apparatus for diagnosis and/or treatment, namely, the recovery and return of oxygen and other gases in medical or therapeutic devices requiring the reuse of oxygen

Oxygen recycling system comprised of CO2 scrubbers, gas mixing apparatus, check valves, tubing, sensors, blowers, oxygen masks, oxygen and exhalation bags, and breathing hoses, for the recovery and return of oxygen and other gases from devices requiring the reuse of oxygen, such as hyperbaric oxygen chambers, respiratory therapy devices, rebreathers, and ventilators

Medical devices, namely oxygen generating apparatus, parts and fittings for such apparatus, namely, carrying cases, mouth pieces, tubes, oxygen masks and refill packs

Hyperbaric oxygen chambers that recycle oxygen for medical purposes

Oxygen recycling system comprised of CO2 scrubbers, gas mixing apparatus, check valves, tubing, sensors, blowers, oxygen masks, oxygen and exhalation bags, and breathing hoses, for the recovery and return of oxygen and other gases from devices requiring the reuse of oxygen, such as hyperbaric oxygen chambers, respiratory therapy devices, rebreathers, and ventilators

BREATHING APPARATUS, NAMELY NASAL OXYGEN CONSERVING CANNULA