Respironics Millennium Air Inlet Filter,8" x 4",Each,1022682Price: USD2.45 Respironics Millennium Air Inlet Filter is designed for use with all Millennium Oxygen Concentrators. It slides into the left side of the concentrator. Respironics Millennium Air Inlet Filter HighlightsRespironics Millennium Air Inlet Filter should be vacuumed or cleaned weekly, using mild soap and waterAir dry completely before re-inserting into the machineReplace as necessary when the filters foam begins to appear worn or degradedOther products from H e a l t h P r o d u c t s F o r Y o u |