The Air Intake Foam Filter is a Gross Particle filter for the AirSep FreeStyle Portable Oxygen Concentrator unit.
Air enters the FreeStyle unit through an air intake filter located under the cover on the lower front of the oxygen concentrator. This filter prevents dust and other large particles in the air from entering the unit. Before you operate FreeStyle, make sure this filter is clean and positioned correctly.
The AirSep FreeStyle Air Intake Filter should be removed, washed, dried and replaced at least ONCE per week.