FESTOOL Festool 454869 Longlife Filter Element for CT 22 and CT 33, 2 Pieces
HEPA Filter (496752) for Pre-2019 Festool CT Mini and CT Midi - Rockler
Festool 498994 Replacement Hepa Filter Element for Ct 26/36/48, White, HEPA Main Filter captures 99.99% of particulate matter down to .3 microns,.., By Visit the Festool Store - Walmart.com