Did you know that oxygen provides you with more benefits than just living? The Dr. Oxygen Portable Oxygen Generator II delivers a variety of health benefits with a safe, easy, and efficient machine that gives you almost pure oxygen on demand! Breathing oyxgen can help relieve stress, restore a youthful glow, and even help with hangovers! This home o2 device is also very simple to use: simply add some tap water to one side of its tub, add a packet of A and B powder (one month supply included), and you get 10 liters of 99.8 % pure oxygen! This package also comes with a mask and nasal tubes for your preference, so revitalizing your tired and beat body and mind is easy and accessible with a Dr. Oxygen Portable Oxygen Generator II!