Nispira True Hepa Filter Replacement Compatible With Envion Therapure Tpp440 Tpp540 Tpp640 Tpp640s Air Purifier. Compared To Part Tpp440f. 3 Packs

Premium HEPA filter replacement compatible with Therapure Air Purifier TPP440 TPP540 TPP640. It replaces Therapure part TPP440F black casing filter. (NOT TPP240 which is longer and slimmer) 3 filters included.