InvisiClean True HEPA Replacement Filter - IC-6022-Filter - Compatible IC-6022, GermGuardian Models AC4300BPTCA, AC4900CA, AC4825, AC4850PT, AP2200CA, Oransi Finn, BXAP148 Genuine InvisiClean TRUE HEPA Replacement Filter - Compatible with InvisiClean IC-6022, GermGuardian Air Purifier Models AC4300BPTCA, AC4900CA, AC4825, AC4850PT, PureGuardian Model AP2200CA, Oransi Finn, and Black+Decker BXAP148 Reduces 99.97% of Dust, Pet Dander, Mold Spores, Odors, Smoking Odors and More True HEPA Filter with Charcoal Pre-Filter Included Improve Your Air Quality at Home and at Work Filter Usually Needs to be Replaced Every 6-12 Months Depending on Use