High Concentration Hydrogen Generator HRP-690 Silver and black design, DC 12V/8A power supply. High Concentration Hydrogen Generator Model: HRP-690 Rated: DC12V/8A Manufacturer: Showa Denki Sangyo Co., Ltd. MADE IN JAPAN Retail Price: ¥650,000 I purchased this high-concentration hydrogen generator, which is said to be used in medicine as a beauty and health device for clinics. I used it for about a year, but I no longer need it, so I am selling it. As you can see in the images, there are some scratches, but there are no problems with its use. The box is also included, but it is a little dirty as shown in the images. I would appreciate it if you could prepare the tube used for inhalation yourself for hygiene reasons. Keep away from fire. - Model: HRP-690 - Power Supply: DC 12V/8A - Color: Silver and Black - Type: High Concentration Water Generator - Packaging: Original Box - Manufactured In: Japan