Dear customer Hello! On behalf of suyzeko, I would like to thank you for your five-star review of our hydrogen machine! Your support and trust is our driving force. We are very pleased that you have experienced the benefits of hydrogen inhalers, which can effectively help increase the body's antioxidant capacity, boost metabolism, and improve overall health. We are pleased to see your satisfaction with this product. Thank you again for your support and look forward to providing you with more quality products and services! I wish you good health and a happy life! ** Hereby, Lily