Recertified Pre-owned Inogen One G4 Concentrator

The Used Inogen One G4 is capable of providing oxygen delivery in an unbelievably small and quiet package. With flow settings from 1-3, the Inogen One G4 is designed to increase independence for most users 24/7. It can be charged at home or on the go – giving you the freedom you deserve.

The Inogen One G4 provides you with three separate oxygen flow settings. It also includes Inogen’s Intelligent Delivery technology, which sets it apart from the competition. This innovative system rapidly detects a breath and delivers oxygen in the first 400 milliseconds. This is critical because most gas exchange occurs in the lungs during this period. Delivering oxygen at the start of a breath ensures that your body uses oxygen more efficiently.

Our highly trained service technicians do a 30-point concentrator inspection before certifying each used concentrator. Here are a few key inspection points: check gasket seals, valves, and piston cups, test the compressor, check motor mounts, clean inside components, and replace all filters.