| 摘要 |
PROBLEM TO BE SOLVED: To provide an oxygen concentrator capable of easily detecting the state of the deterioration of an adsorbent for nitrogen being used in the oxygen concentrator.SOLUTION: A pressure fluctuation adsorption type oxygen concentrator 1: having one or more adsorption cylinders 47 and 49 filled with an adsorbent which selectively adsorbs nitrogen relative to oxygen; and producing an oxygen concentrated gas by repeating pressurizing and depressurizing to the adsorption cylinders 47 and 49, is provided with an electronic control unit 79 to control the operation of the oxygen concentrator 1 itself. The electronic control unit 79 detects the degree of deterioration based on the number of times of at least one of starting and stopping operations in the production of the oxygen concentrated gas by pressurizing and depressurizing. |
