| 摘要 |
PROBLEM TO BE SOLVED: To provide an oxygen enrichment machine with excellent maneuverability which can be used regardless of a type or voltage of an external power source. SOLUTION: The oxygen enrichment machine includes an oxygen enriching membrane unit 2 to increase oxygen concentration in the air, a pump 6 which is connected to the above oxygen enriching membrane unit 2, a discharge section 12 which is connected to the above pump 6 and discharges the oxygen enriched air, a controlling means 3 to control the above pump 6, and an external power source connecting section 4 which is connected to the external power source with different voltage and/or a waveform, wherein the above controlling means 3 can be driven by the power supplied from the external power source connecting section 4, so that the maneuverability is improved since the power source can be optionally selected according to the situation regardless of the voltage or the waveform of the power source such as a commercial power source in a house or a building, a cigar-lighter in a car or the like. COPYRIGHT: (C)2005,JPO&NCIPI
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