| 摘要 |
The purpose of the present invention is to provide an oxygen concentration device capable of controlling oxygen concentration within a wide range. The oxygen concentration device (10) has nitrogen adsorption parts (14A, 14B) filled with an adsorbent which selectively adsorbs nitrogen rather than oxygen, a pressurized air supply part (12) for supplying pressurized air to the nitrogen adsorption parts (14A, 14B), and pipes (26A, 26B, 34) connecting the nitrogen adsorption parts (14A, 14B) and the pressurized air supply part (12), and is provided with an atmosphere release part (24) for releasing a portion of the air flowing through the pipes (26A, 26B, 34) into the atmosphere. |
