Honeywell True HEPA Air Purifier Replacement Filter 2 Pack, HRF-H2 / Filter (H) Go to amazon.com Related posts Top hepa filter replacement FeatureCaptures up to 99.97% of airborne particles at 0.3 microns.For best performance replace once per year. DescriptionTrue HEPA Replacement Filter - 2 Pack. Fits models; Honeywell True HEPA Towers; HPA-050, HPA-150, HHT-055, HHT-155, HHT-1500.