The Eclipse line of portable oxygen concentrators has a history of high quality and ground-breaking concentrators that have made it easier and more convenient to receive oxygen therapy. If you recently upgraded from the Eclipse 3 to the newest mobile unit, the Eclipse 5, you might have done so for at least one really good reason – the batteries from one Eclipse to another are all compatible.
There are a few other good reasons to upgrade to the Eclipse 5 from the 3, even if you feel like the Eclipse 3 is mostly the same, and you're already happy with it. The Eclipse 3 is already a great portable oxygen concentrator, but there are a couple major differences between the two that might make you change your mind. Here they are: