This is an excellent company. They actually do go out of their way to help you. They have always been very helpful and kind. My last encounter with Dave was beyond his job description I am sure of it. I had been taken to the hospital by EMS and did not have any oxygen tank to take with me on my return trip home 5 days later. Without my knowledge Dave was contacted and he strolls into my hospital room with a tank of oxygen in a cart for me for my ride home. This was all done within just an hours time! It has always been this way with this company, I call, they are there. I would never think of changing companies and certainly will always call them if I have a problem with any of my equipment. I highly recommend Aire Core.