I have a brand new, never used, oxygen concentrator that I puchased but realized that I cannot use because of the oxygen delivery rate. I inquired about returning it but the retun process is unbelievable including a live video of the item explaining why I want to return it, as well as complete documentation of the purchase, sales order, receipts, date of order, date of delivery, etc. etc. I do not want to go through all of that, so I decided I would like to donate it to someone who could use it. It is a Varon, NT-05 model. If anyone could use it, you are welcome to it. I am located in Carlisle and I will be willing to ship it, if necessary. Just give me the address.