Portable system for the production of oxygen

A portable oxygen generating device, comprising:

• a reaction chamber comprising:
• a catalyst that facilitates the chemical decomposition of hydrogen peroxide to oxygen and water,
• an inlet for introduction of hydrogen peroxide solution into the reaction chamber, and
• an outlet for release of oxygen and water vapor from the reaction chamber;
• a hydrogen peroxide feed system in fluid communication with the inlet of the reaction chamber, comprising:
• a hydrogen peroxide reservoir that contains aqueous hydrogen peroxide solution as a replaceable cartridge, and
• a feed flow regulator that controls a rate of addition of the aqueous hydrogen peroxide solution into the reaction chamber;
• a cooling system, comprising:
• an inlet, in fluid communication with the outlet of the reaction chamber, for receiving the oxygen and water vapor, and
• a condenser comprising two or more drains, each configured to drain water condensed from the water vapor in the cooling system;
• an outlet for release of cooled oxygen gas with reduced water vapor;
• and
• one or more hydrophobic membranes situated after the cooling system, or situated between the reaction chamber and the cooling system, or both, to remove a portion of water from the gas flow comprising the oxygen;
• and
• an electronic control unit that regulates a flow rate of oxygen from the device;
• wherein the device generates a constant flow of oxygen up to at least about 8 L/min, at a temperature of less than about 40° C. for more than about 30 minutes.