This is Aitec's Hydrogen Multi Pod. It can be used for hydrogen inhalation and to make hydrogen water (up to 80 degrees Celsius). It hasn't been used much, so it's in pretty good condition. I believe the condition is good, but there may be individual differences in how it's perceived. Please understand that this is a used item before purchasing. There are no instructions or instructional DVD. I seem to have lost them and couldn't find them. If I find them before the purchase, I will include them. One cannula will be included. Please feel free to contact me with any questions.