HQRP Active HEPA Filter for S8 UniQ Miele canister vacuum cleaner plus Coaster HQRP&reg; Active Hepa Filter plus HQRP&reg; Coaster; This filter is HEPA filtration and retains 99.99% of particles down to 0.3 micron; 100% Compatible with Original filter; 2 weeks DOA replacement warranty!