To provide an oxygen mask capable of supplying high concentration oxygen to a portion covering a mouth in a mask having a partition between a portion covering a nose and a portion covering a mouth and a connector for connecting an oxygen supply tube to be used therein . SOLUTION: The mask body covering the nose and the mouth includes a mask body portion 11 having a partition portion 115 between a portion 111 covering the nose and a portion covering the mouth 112, and a connecting portion 122 connecting the oxygen supply tube And an oxygen introduction part 12 for introducing oxygen into the mask main body part 11. The oxygen introduction part 12 has a first introduction part 123 for introducing oxygen to the part 111 covering the nose and a second introduction part 123 for covering the mouth And a second introduction part (124) for introducing oxygen into the part (112). (FIG.【課題】鼻を覆う部分と口を覆う部分の間に仕切りがあるマスクにおいて、口を覆う部分にも高濃度酸素の供給が可能な酸素マスク及びこれに使用する酸素供給チューブ接続用コネクターの提供。【解決手段】鼻及び口を覆うマスク本体であって、鼻を覆う部分111と口を覆う部分112の間に仕切り部115を有するマスク本体部11と、酸素供給チューブを接続する接続部122を有し、マスク本体部11内へ酸素を導入する酸素導入部12と、を備え、酸素導入部12が、鼻を覆う部分111に対して酸素を導入する第1導入部123と、口を覆う部分112に対して酸素を導入する第2導入部124とを備えることを特徴とする酸素マスク1。【選択図】図4
