What is the life expectancy for an Inogen One G4 portable oxygen concentrator? You are here: Main Portable Concentrator FAQs Inogen One G4 Inogen One G4 FAQs What is the life expectancy for an Inogen One G4 portable oxygen concentrator? < All Topics The expected life for the Inogen One® G4 Oxygen System is 5 years or up to 10,000 hours.
