GermGuardian Filter B HEPA Pure Genuine Air Purifier Replacement Filter, Removes 99.97% of Pollutants for AC4825, AC4300, AC4900, AC4825DLX, AC4850, CDAP4500, AP2200, Black/Yellow, FLT4825Genuine HEPA PURE Air Filter: Experience the power of authentic HEPA PURE air filtration with this GermGuardian filter replacement engineered to efficiently capture 99. 97% of particles as small as 0. 1 microns, including dust, pollen, and pet dander Why HEPA PURE: Proudly manufactured in North America and backed by rigorous scientific testing using reputable independent labs, this genuine HEPA filter features unmatched multi layer filtration