Blue Pure 311i Max F3MAX Replacement FilterF3MAX · US · OEMVerified for US models only.Official manufacturer / OEMBlueairF3MAX Replacement Filter↗Aftermarket listingsFilter-MonsterBlueair Blue Pure 311i Max HEPA replacement↗NispiraBlueair Blue Pure 311i Max replacement filter↗Aftermarket compatibility is stated by the seller or maker and is separate from Filter Fit evidence.Full part details →Open manufacturer source ↗Evidence A · BlueairView evidence ↗