Model numbers: AC4825, AC4825E
Cadence: every 8 months
Filter links: FLT4825
Primary filter: GermGuardian FLT4825 Filter B
Brand filter ledger
GermGuardian air purifier replacement filters by model
AC-series tower purifiers with FLT filter kits and carbon pre-filter options.
Supported models
2
Filter SKUs indexed
2
Replacement cadence
8 months
Confirm the interval on your purifier indicator or manual.
Common GermGuardian filter series notes
Model prefixes
AC, CDAP, FLT
Filter SKUs to check
FLT4825, FLT5000
Indexed filter types
HEPA filter with carbon pre-filter
Last reviewed with the local compatibility dataset. Retailer pages can merge similar model families, so match both purifier model and filter SKU before ordering.
GermGuardian model list
Open a model page for OEM-first filter details, compatible alternatives, retailer CTAs, and model-specific warnings.
Model numbers: AC5000, AC5000E, AC5250PT
Cadence: every 8 months
Filter links: FLT5000
Primary filter: GermGuardian FLT5000 Filter C