PROBLEM TO BE SOLVED: To provide an oxygen concentrator from which a humidifier is easily removed.SOLUTION: The oxygen concentrator 1 includes generating means 23, 25 generating oxygen concentrated gas the humidifier 49 leading in the oxygen concentrated gas from a lead-in port 121c and leading out the oxygen concentrated gas from a lead-out port 123c after humidifying it and a supply means 51 supplying for use the oxygen concentrated gas led out of the lead-out port 121c. The lead-in port 121c and the lead-out port 123c are connected to a lead-in side end 125 and a lead-out side end 127 on the body side of the oxygen concentrator 1 respectively by insertion fitting, and an inserting direction in insertion fitting of the lead-in port 121c and lead-out port 123c inclines so that the humidifier 49 side is low and that the body side of the oxygen concentrator 1 is high.COPYRIGHT: (C)2012,JPO&INPIT【課題】加湿器の取り外しが容易な酸素濃縮装置を提供すること。【解決手段】酸素濃縮ガスを生成する生成手段23、25と、前記酸素濃縮ガスを導入口121cから導入し、加湿後、導出口123cから導出する加湿器49と、前記導出口121cから導出された前記酸素濃縮ガスを使用に供する供給手段51と、を備える酸素濃縮装置1であって、前記導入口121c及び前記導出口123cは、それぞれ、酸素濃縮装置1本体側の導入側端部125及び導出側端部127と差込挿着により接続され、前記導入口121c及び前記導出口123cの前記差込挿着における差込方向は、前記加湿器49側が低く、前記酸素濃縮装置1本体側が高くなるように傾斜していることを特徴とする酸素濃縮装置1。【選択図】図8
