PROBLEM TO BE SOLVED: To provide an oxygen concentrator performing maintenance more efficiently by providing information of an adequate maintenance cycle according to the load size of an operating history of the concentrator.SOLUTION: The oxygen concentrator comprises a means of oxygen concentration for separating oxygen in air and forming concentrated oxygen and a means of setting the flow amount for supplying a predetermined flow amount of concentrated oxygen to a user, and it also is equipped with a means of measuring the operating time of the concentrator and a memory means for memorizing the operating time of each flow amount of the flow amount setting means.COPYRIGHT: (C)2009,JPO&INPIT【課題】装置の運転履歴の負荷の大小に応じて、適切なメンテナンス周期の情報を提供することでより効率的は保守管理が可能な酸素濃縮装置を提供する。【解決手段】空気中の酸素を分離し濃縮酸素を生成する酸素濃縮手段、濃縮酸素を所定流量で使用者に供給する流量設定手段を備えた酸素濃縮装置において、該装置の運転時間を計測する運転時間計測手段を備え、該流量設定手段の設定流量毎の運転時間を記憶する記憶手段を具備することを特徴とする酸素濃縮装置。【選択図】なし
