PROBLEM TO BE SOLVED: To avoid lowering of oxygen supplying amount due to generation of blinding of a filter in a humidifier when oxygen is supplied to patient through a flow rate setting apparatus and the humidifier by which oxygen is humidified. ;SOLUTION: A medical oxygen inhalation device by which oxygen discharged from an oxygen supplying source 1 is supplied to a patient P through a flow rate setting apparatus 2, a humidifier 3, and a cannula 4 is composed of a housing container 5 which houses humidifying medium 6 and is sealed by a lid board 8, an inhalation tube 10 whose one end is connected to the oxygen supplying source 1 side and the other end is connected to a filter 9 which is immersed into the humidifying medium 6, and an outflow tube 12 whose one end is connected to the cannula 4 and the other end is in a vacant room inside the housing container 5, and small holes 13 are provided on the inhalation tube 10 which is positioned in the vacant room.;COPYRIGHT: (C)1997,JPO
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