Used a few times. Can be used immediately if you put in purified water. [Regular Price] 400,400 yen (tax included) Generates high-concentration hydrogen at 99.7%! Since pure water or purified water is used for generation, you can use it safely and at a low cost. Equipped with a 3-hour continuous generation mode, so you can enjoy long hours of hydrogen inhalation while lying down, watching TV, etc. - Product Name: Hydrogen Gas Generator - Power Consumption: Measured value 8W〜10W - Gas Generation Rate: 30ml/min - Operating Temperature Range: 5°C〜30°C - Size: W250×D250×H290 - Weight: 3.2kg Thank you.