True HEPA Filter Replacement for GermGuardian FLT5000/FLT5111 for AC5000 Series Air Purifier, Filter C By NISPIRA - 3 Filters NISPIRA True HEPA filter with carbon pre-filter. Replacement for GermGuardian AC5000 series Filter C Proved to remove household odor, dust, bacteria, pollen and germs from air with 99.7% efficiency. Suggested to replace every 6-8 months product dimension: 4.8 x 1.8 x 19.2 100% satisfaction guaranteed. Premium quality meet or exceed the leading national brands.