Inogen One G5 Portable Oxygen Concentrator - Inogen G5 IS-500

Inogen One G5 Lightweight Backpack w/Pockets - Light Purple

Inogen One G5 Portable Oxygen Concentrator - 6L

Inogen One G5 Portable Oxygen Concentrator

Inogen One G5/OxyGo NEXT Used Oxygen Concentrator

Inogen One G5 Lightweight Backpack w/Pockets & Cannula Holder - Navy

Inogen One G5/OxyGo NEXT Used Oxygen Concentrator

Inogen One G5 16 cell System IS-500-NA16

Inogen One G5/OxyGo NEXT Used Oxygen Concentrator

What is the Life Expectancy of an Inogen One G5 Oxygen System?