This is a $4,000 water purifier for the shower from Japan - It is used in all the hospitals (including their water purifier for drinking) and the company is over 25 years old with a great track record (very respected) It is best for cancers, any skin irritations and filters out all impurities and adds minerals for a Spa Resort level feeling. It's very gentle on hair & skin. It is one of the best purifiers in the world. It is quite new, I have the boxes etc. I have to sell it because I have to move & can't bring it with me. Gratitude Mary-Anne