PROBLEM TO BE SOLVED: To provide an apparatus for supplying oxygen-enriched gas which guides oxygen-enriched gas from a supply source of oxygen-enriched gas to the vicinity of the nose/mouth during activities or while sleeping without giving uncomfortable feeling on the face and without twisting of an oxygen-enriched gas supply tube.SOLUTION: The apparatus for supplying oxygen-enriched gas comprises the oxygen-enriched gas supply tube 4, a headset support 1 put on the head of a user, an arm 2 extending from the support to the vicinity of the nose/mouth of the user, a tube fixing means for fixing the oxygen-enriched gas supply tube 4 to the arm 2, and an attaching means for attaching the arm on a plurality of positions of the support 1.COPYRIGHT: (C)2007,JPO&INPIT【課題】酸素富化ガスを、活動時、及び、就寝時において、顔面に不快感を与えることなく、かつ、酸素富化ガス供給チューブの捩れがなく、酸素富化ガスの供給源から鼻・口付近まで導くことができる酸素富化ガス供給用具を提供する。【解決手段】酸素富化ガス供給用チューブ4、使用者の頭部にかけるヘッドセット型の支持体1、該支持体から使用者の鼻・口付近へ伸びるアーム2、該酸素富化ガス供給用チューブ4を該アーム2に固定するチューブ固定手段を備え、該支持体1の複数位置に該アームの取り付けが可能な取付手段を有する酸素富化ガス供給用具。【選択図】図1