NOVELTY - A direct oxidation fuel cell system, comprises: (I) fuel source; (II) direct oxidation fuel cell with a membrane electrode assembly having a protonically conductive, electronically non-conductive membrane electrolyte, and a catalyst coating on each side of anode and cathode face; anode diffusion layer; and cathode diffusion layer; (III) gas permeable layer; and (IV) gas permeable layer load.    USE - As a direct oxidation fuel cell system.    ADVANTAGE - The system has the ability to adjust the amount of methanol, which is presented in the anode, to avoid excessive amounts of unreacted fuel in the cell. It has simple cell geometry and simple mechanisms for flow adjustment, producing a simple and reliable system.    DETAILED DESCRIPTION - A direct oxidation fuel cell system (2), comprises:    (I) fuel source;    (II) direct oxidation fuel cell (3) having:    (a) a membrane electrode assembly (6) comprising:    (i) a protonically conductive, electronically non-conductive membrane (7) electrolyte, with an anode face (8) and an opposing cathode face (10);    (ii) a catalyst coating on each side of the anode and the cathode face, where electrically-generating reactions occur upon introduction of an associated fuel solution from the fuel source including anodic dissociation of the fuel solution into carbon dioxide, protons and electrons, and a cathodic combination of protons, electrons and oxygen from an associated source of oxygen, producing water;    (b) an anode diffusion layer (22) in intimate contact with the anode face of the membrane electrode assembly and having openings in it to allow the associated fuel solution to pass through to the anode face, as fuel is consumed at the anode; and    (c) a cathode diffusion layer (24) in intimate contact with the anode face of the membrane electrode assembly and having openings in it to allow oxygen to pass through to the cathode face of the membrane electrode assembly;    (III) gas permeable layer comprising substantially of a gas permeable layer disposed generally parallel to the anodic diffusion layer, such that the fuel solution can pass between the anodic diffusion layer and the gas permeable layer, and carbon dioxide that is released as fuel is consumed at the anode face, passes through the gas permeable layer and is vented from the fuel cell, where carbon dioxide is removed from the fuel cell without active transport mechanisms; and    (IV) gas permeable layer load coupled across the fuel cell, that provides a path for the electrons, where electricity is provided as the electricity-generating reactions proceed.    INDEPENDENT CLAIMS are also included for:    (a) A direct oxidation fuel cell, comprising a membrane electrode assembly as above, an anodic diffusion layer as above, a cathodic diffusion layer as above, and a gas permeable, liquid impermeable membrane as above;    (b) A fuel container and a delivery assembly for use with an associated direct oxidation fuel cell system, comprising an exterior housing (5) having an opening at one end; a first inner container disposed within the exterior housing, for holding a fuel solution, and a fuel conduit extending through the opening in the exterior housing, and coupling the first inner container to the associated fuel cell system; a second container disposed within the exterior housing, for holding water to be mixed with the fuel solution and a water conduit extending through the opening in the exterior housing, and coupling the second inner container to the associated fuel cell system; an interface for sealing the coupling of the fuel conduit and the water conduit with the associated fuel cell system; mixing assembly connecting the fuel conduit with the water conduit to mix fuel and water to adjust an amount of water mixed into fuel to result in a fuel mixture of a predetermined concentration; and delivery conduit for transporting the resulting fuel mixture to the associated direct oxidation fuel cell system; and    (c) A method of removing carbon dioxide from a direct oxidation fuel cell, comprising separating carbon dioxide from the anode by providing a gas permeable layer as above, contiguous to an anode diffusion layer, which in turn, in intimate contact with the protonically conductive membrane allowing removal of carbon dioxide generated at the anode, and while allowing fuel solution to penetrate to the anode.    DESCRIPTION OF DRAWING(S) - The figure shows a block diagram of a direct methanol duel cell system.    Direct oxidation fuel cell system (2)    Direct oxidation fuel cell (3)    Housing (5)    Membrane electrode assembly (6)    Protonically conductive, electronically non-conductive membrane (7)    Anode face (8)    Cathode face (10)    Anode diffusion layer (22)    Cathode diffusion layer (24)