Honeywell True HEPA Replacement Filter N, 2 Pack Nullify Imported Replacement Filter N Captures up to 99.97% of airborne particles at 0.3 microns Includes 2 filters that should be replaced once per year Fits Honeywell Air Purifier Models: HPA-245 series, HPA-248-TGT, HPA-249 series, HHT-145 and HHT-149 series