A kind of oxygen producer it includes container body, container cover, production oxygen packet, filter, piercing member, aromatic, activated carbon, crosses drainage, reaction water and regenerative agent. Container body is filled with reaction water. Container cover is arranged the open end of what container body and can revolve lock what first position and the second position with respect to what container body. It produces in oxygen packet and is filled with regenerative agent. The side of piercing member has laciniation. When the container cover position what second position, piercing member, which pierces through, produces oxygen packet, causes the reaction water in container body to enter and produces oxygen packet and regenerative agent chemically reactive, generates oxygen by the drainage filtering Hou of crossing in filter. To filter the gas other than oxygen, aromatic generates to allow the dulcet oxygen of user's inhaler and loosens sense activated carbon.一種氧氣產生裝置,其包含容器體、容器蓋、產氧包、過濾器、刺穿件、芳香劑、活性碳、過濾水、反應水及產氧劑。容器體填有反應水。容器蓋設置於容器體之開口端而可相對於容器體旋鎖於第一位置與第二位置。產氧包內填有產氧劑。刺穿件之一側具有鋸齒狀結構。當容器蓋位於第二位置時,刺穿件刺穿產氧包,致使容器體內之反應水進入產氧包與產氧劑起化學反應,經過過濾器中的過濾水過濾後產生氧氣。活性碳用以過濾氧氣以外之氣體,芳香劑用以讓使用者吸入具有香味的氧氣而產生放鬆感。