To provide an oxygen mask which prevents leakage of oxygen from a gap of an upper portion of a mask (that is, near a nose back) in an oxygen mask to which an oxygen supply tube is connected from below the mask main body.A mask main body part covering a nose, a nose and a mouth an oxygen introduction part having a connection part connecting the oxygen supply tube from the lower side of the mask main part, introducing oxygen into the mask main part And a flow path changing member (125) for changing upward flow of oxygen supplied into the main body.(FIG.【課題】マスク本体の下方から酸素供給チューブが接続される酸素マスクにおいて、マスクの上部(即ち鼻背付近)の隙間から酸素が漏れることを抑止した酸素マスクの提供。【解決手段】鼻若しくは鼻及び口を覆うマスク本体部と、マスク本体部の下方側から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内へ酸素を導入する酸素導入部12と、マスク本体部内へ供給される酸素の上方への流れを変える流路変更部材125と、を備える酸素マスク。【選択図】図3
