Nice O2 unit, reasonably quiet
"I ordered this Inogen At Home 5L Stationary Oxygen Concentrator because I needed a smaller and lighter unit to travel with in our motorhome. This unit is just what I wanted. It is small and compact, plus it's reasonably quiet. I can easily place it in the hallway outside our bedroom, no problem. The O2 seems to be delivering as expected. I tested that by checking my O2 levels with a pulse oximeter and also my overnight CPAP results. So all looked good. Overall, I am very happy with this unit."

