Breathing mask

A breathing mask, comprising:

• a mask body unit including a mask body suitable for covering at least the nose of a user, and two straps respectively connected to two opposite sides of said mask body, said mask body having an inner surface configured to cooperate with the user's face to define an interior space therebetween, and an outer surface opposite to said inner surface;
• a container disposed on said inner surface of said mask body and having a container body that defines a chamber for receiving working liquid, said container body being formed with a plurality of vent holes at a top side thereof for communicating said chamber with said interior space;
• and
• at least one gas generating unit connected to said container and including a casing, an electrolysis device disposed in said casing for electrolyzing the working liquid into a hydrogen/oxygen gas mixture, a control member for controlling an operation of said electrolysis device, and a power source electrically connected to said electrolysis device and said control member;
• wherein said container body has at least one first connecting portion provided at one side of an outer peripheral surface thereof and extending away from the user, said at least one first connecting portion defining a first passage communicating with said chamber, said casing having a second connecting portion connected to said first connecting portion and defining a second passage communicating with said first passage.