The Inogen One Output filter helps protect the user from inhalation of small particles in the system’s airflow, assuring particle free oxygen. An output filter must always be in place during operation of your Inogen One.
USAGE: The Inogen One output filter is located behind the concentrators removable Cannula Barb (RP-505). For best results, the filter should be replaced on an annual basis. For complete instructions review the documentation that came with your equipment.