HQRP 2-Pack Washable & Reusable Hepa Filter for Hoover TurboPOWER 3100 Fold Away Bagless Upright Vacuum Cleaner plus HQRP Coaster HQRP&reg; Washable & Reusable Hepa Filter plus HQRP&reg; Coaster; HQRP filters are washable and reusable! This filter is HEPA filtration class H12 and retains 99.97% of particles down to 0.3 micron. 100% Compatible with Original filter; 2 weeks DOA replacement warranty!