An oxygen enriching module provided with a bundle of many hollow oxygen enriching fibers, each having an air through-passageway enclosed by an oxygen selective permeable membrane wall, a container cell in the shape of a hollow open-ended casing for sealingly encasing the hollow oxygen enriching fibers, an axial air blowing device or air blowing fan integrally connected to at least one end of the container cell to cause an axial flow of the atmospheric air parallel with the axes of the bundle of many hollow oxygen enriching fibers and passing through the ...
An oxygen enriching module for generating an oxygen enriched air from atmosphere air comprising: a plurality of hollow oxygen enriching porous fibers formed as a bundle of fibers extending in parallel with one another, each hollow oxygen enriching fiber being provided with openings at opposite ends thereof and an air passageway enclosed by an inner cylindrical wall coated with an oxygen selective permeable membrane and when the length of each hollow oxygen enriching fiber is “L”mm and when an inner diameter of the air passageway thereof is “d”mm, a value...
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