HQRP HEPA Filter and Foam Filter Insert for Dirt Devil Ud70105 Breeze Bagless Cyclonic Upright Coaster HQRP HEPA Filter and Foam Filter Insert; This filter is H13 filtration class and retains 99.95% of particles down to 0.3 micron. Filters should be changed every 3 to 6 months. Compatible with Original filter; 2 weeks DOA replacement warranty!