Oxygen concentrator designed for individual home use. It is an electronic device that separates oxygen from the room air. It provides you with a high concentration of oxygen through a nasal cannula. Clinical studies have shown that oxygen concentrators are therapeutically equivalent to other types of oxygen delivery systems. The user guide will inform you about your concentrator and serve as a reference during its use. Full, secure, and reliable plastic cover. Displays usage timer and total operating hours via the display screen. The timer function turns off the device automatically for convenience. A pressure relief valve helps make the device safer. Power failure alarm function. Device failure alarm function (including pressure/cycle failure, compressor failure, low oxygen concentration). Compressor equipped with overheat protection function to ensure safety of the compressor and concentrator. Nebulizer function or vaporizing function for inhalation of bronchodilator medications with oxygen.