If you have ever had to rush to the ER and have your dog on oxygen it is a scary moment. It was traumatic for Gary ( and us) plus it cost thousands of dollars. After must research and a prescription from the vet we found this and it has ABSOLUTELY been a life saver to have! For the oxygen concentrator and oxygen tanks you can find on @paw print oxygen 🙂 * I can not recommend enough if your dog has a heart condition or breathing issues ltkdogs LTKVideo LTKtravel LTKhome