Ok for a change for short periods
a bit uncomfortable over your head and hard to get it in the right place to help you breathe the oxygen. Once you do get it right it will work. It is a nice change so, you don't have to wear those tubes behind your ears all the time and make them sore. You could never sleep with this on. Anyone that needs a lot of oxygen I would not recommend this for there is just to much of the oxygen that escapes.
Rating: 3 stars