Blueair Blue Pure 411A Max Replacement Part Fabric Prefilter Gray Air Purifier

Blueair Blue Pure 411A Max Replacement Part Fabric Prefilter in Gray This prefilter is preowned. It is in good used condition only has one small snag. See 2nd to last photo for that flaw. This fits the Blue Pure 411A Max. See last photo to confirm you are purchasing the correct prefilter. Air purifier is NOT included. This is for the fabric prefilter only.