An oxygen belt breathing pack includes at least one flexible polymeric pressure vessel connected with sections of flexible conduit to either a sealing fitting, an inlet fitting, another section of flexible conduit attached to another pressure vessel or a manifold. The manifold provides connections for a high pressure regulator and oxygen fill source. The pressure vessel and sections of flexible conduit are encased in high strength fiber material. The pressure vessel is wrapped in high strength ballistic ribbon material. The high pressure regulator is connected to a low pressure hose connected to a nasal cannula. A flexible container is formed of resilient material, and is sized and shaped to accommodate the at least one pressure vessel, the sections of flexible conduit, the manifold and to provide storage for the nasal cannula. The container is formed as a belt or lightweight backpack. A pressure gauge monitors oxygen use by the patient.
