This device can generate hydrogen water and allow for hydrogen inhalation. I have used it several times, and as the photos show, it is in good working condition. An unopened cannula is included, so you can use it immediately after purchase. I will thoroughly clean and protect the device before shipping. While similar devices can cost nearly 100,000 yen, I am offering this at this price. Please feel free to contact me if you would like additional photos or have any questions. *The cannula is from COT Corporation. *To prevent any issues, returns and refunds are not accepted after purchase. Thank you for your understanding. *Please refrain from purchasing if you are overly concerned about minor details.