I also have an inogen 5 and medicaid wouldn’t cover it, they only covered the portable cylinder tanks. I also wanted to add this time bit as well since we are living in this covid 19 time. These POC do not filter out viruses. So just be aware that when you are in a public place such a grocery store or anywhere else you may go, the concentrator uses the air around it and yes it does have some filtration just doesn’t filter out coronaviruses which is definitely something to think about right now as those of us needing supplemental oxygen are considered in the high risk category. Not trying to be a Debbie downer just trying to bring to light another thought while searching for any POC