Drive Medical 525DS-Q Provide better breathing solution using The DeVilbiss 5 Liter Oxygen Concentrator by Drive Medical. It can be used as a first-line tool to treat the signs and symptoms of respiratory distress, including hypercapnia, hypoxia, and dyspnea. Patient alert system will detect unit component failure. This system is comprised of both visible and audible alerts which signal the patient if a malfunction should occur. Oxygen Sensing Device standard on every unit, increases accuracy and reliability for longer service intervals. The pressure compensated flow meter permits use of a long cannula while maintaining an accurate flow setting. The flow meter knob can also be locked for added patient safety. It is energy efficient and very convenient for humidifier bottle users. OWNERS MANUAL: http://cdn. .