 If you're on supplemental oxygen, heavy and awkward tanks can be a burden. Now, you can leave home and leave the tanks behind with Inogen, portable oxygen therapy that moves with you. With my Inogen, now I'm able to do the things that I've always loved. I just press the button here, and there's my oxygen. Inogen systems are so small and light, you're free to leave the house without the hassles of an oxygen tank. I can play golf again. I can go grocery shopping. I'm free again.