OXYGEN CONCENTRATOR

PROBLEM TO BE SOLVED: To facilitate a failure analysis and understanding of the time of an overhaul by storing the frequency of use and the time of a continuous use of an oxygen concentrator. SOLUTION: The oxygen concentrator which generates compressed air by using the atmosphere, separately produces oxygen by absorbing nitrogen from the compressed air by an absorbing agent, and enables a user to inhale the separately produced oxygen by using an inhaling instrument is equipped with a real-time clock timer for timing the time and date of the beginning of the use and the time of the use, an operation history storing part for storing the operation history of the time of the inhalation of oxygen with the timing, a performance history storing part for storing the performance history of the oxygen concentrator with the timing, and a read-out part for separately accessing the operation history storing part and the performance history storing part. COPYRIGHT: (C)2008,JPO&INPIT