| 摘要 |
An oxygen enriching apparatus has an oxygen enriching module, a motor, a blower, a hollow cylinder which contains a porous center tube, a filter, an exhaust port and a vacuum port. The apparatus simultaneously pushes and pulls atmospheric air through the oxygen enriching module to produce oxygen enriched air. The filter has a semi-permeable membrane positioned about the porous center tube and between two perforated polyester liners and a vinyl liner positioned on the outside of the filter. A vacuum is applied between the vinyl lining and the outermost polyester lining to draw the oxygen enriched air out of the module.
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