Inogen Output Filter For Inogen One G2 Portable Oxygen Concentrator,Output Filter,10/Pack,RP-101Price: USD54.99 Inogen Output Filter For Inogen One G2 Portable Oxygen Concentrator is compatible with Inogen One G2 Oxygen Portable Oxygen Concentrator. It is intended to protect the user from inhalation of small particles in the product gas flow. This filter is conveniently located behind the removable cannula nozzle fitting and should be inspected and replaced on an annual basis. Easy to insert and remove. Other products from H e a l t h P r o d u c t s F o r Y o u |