Quiet and reliable oxygen concentrator providing a continuous supply of oxygen therapy for 24-hour care at home. Draws in room air, separates the oxygen from other gases in the air, and delivers the oxygen at high concentrations to the user. Delivers up to 5 litres per minute with high oxygen concentration across all flow rates. Features a flow rate of 0.5-5LPM, delivering 93% ± 3% oxygen concentration. Includes an auxiliary oxygen port at the back of the oxygen concentrator which can be used to fill cylinder transfill systems. Visual and audible alarms for low oxygen levels, power failure, pressure drops and service required. OSD sensor for continuously monitoring oxygen levels. Front labels with easy-to-read pictograms. Oxygen outlet incorporating a fire protection adaptor.