A mobile dressing for delivering pressurized therapy gas to a wound. The dressing may include an inflatable structure for creating a sealed cavity around the wound. The inflatable structure further may include a dimple and an aperture within the dimple. A first lumen may be fluidly connected to the aperture for delivering pressurized therapy gas to the dimple. A second lumen may be fluidly connected to the opening for delivering pressurized gas to the inflatable structure. A first pump may include a first intake port fluidly connected to a first reservoir of therapy gas, as well as a first discharge port fluidly connected to the first lumen for supplying therapy gas at an increased pressure. A second pump may pressurize air for inflating the inflatable structure and creating a sealed cavity over the wound. Pressurized therapy gas may be administered to the wound in the sealed cavity.
