BreatheSmart Classic HEPA FilterBF35 series · US · OEMVerified for US models only.Official manufacturer / OEMAlenBreatheSmart Classic HEPA Filter↗Marketplace listingsAIRxAlen BreatheSmart Classic BF35 replacement filter kit↗Aftermarket compatibility is stated by the seller or maker and is separate from Filter Fit evidence.Full part details →Open manufacturer source ↗Evidence A · AlenView evidence ↗