Aeropac F5 filter - Filters fine dust, pollen and pollen
PureDrop PDR-F5-50 Water Filter Pack for 5 Stage RO 5-Pack Set Under Sink Replacement Filter in the Replacement Water Filters & Cartridges department at Lowes.com
Aeropac active carbon filter - Filters fine dust and gases
Polyester filter medium - F5, M5 - TECHNICIS Filtration - fiber / air / spray booth
2 Dirt Devil F5 Hand Vac Filters with Base, Part # 3DEA950001 - Walmart.com