HQRP 2-Pack Active HEPA Filter compatible with Miele Callisto/Capricorn / Earth canister vacuum cleaners plus Coaster HQRP&reg; Active Hepa Filter plus HQRP&reg; Coaster; This filter is HEPA and retains 99.99% of particles down to 0.3 micron. 100% Compatible with Original filter; 2 weeks DOA replacement warranty!