Abstract: A personal use oxygen concentrator, including; a controllable user interface including at least one of visual and audio indicators, a power supply, a housing, a controllable product gas output device, a blower, a compressor, a selective adsorption system comprising adsorption beds and gas flow control valves comprising at least one of a PSA, VPSA, or VSA oxygen producing system, a programmable controller configured to control at least one of the blower, compressor, output device, user interface, and selective adsorption system, and an integrated smoke detection system and smoke detector controller, mounted within the housing, configured to be controlled by and provide data to the programmable controller, and the programmable controller may perform predetermined control actions when smoke is detected.

Abstract: A portable oxygen concentrator designed for medical use where the adsorbent beds, are designed to be replaced by a patient. The concentrator is designed so that the power supply and adsorbent bed mount is one module and the compressor and air filter are part of another module configured to provide a unitary cooling and air supply system. Replacement beds may be installed easily by patients, and all gas seals will function properly after installation.