Filter compatibility ledger

FLT4825 compatible air purifier models

Name: GermGuardian FLT4825 Filter B
Brand: GermGuardian
SKU: FLT4825

Use this filter page when a retailer listing or old package shows the filter code first. Match the SKU, dimensions, and purifier model before ordering.

Filter status

OEM / manufacturer filter

Compatible models

Annual cost estimate

$40-100 USD

OEM filter

GermGuardian FLT4825 Filter B

HEPA filter with carbon pre-filter

Primary SKU: FLT4825
Dimensions: Filter B size for 22-inch tower purifiers.
Cost note: One to two filter kits per year.

Retailers may group lookalike filters together. Confirm the purifier model label and SKU on the listing before checkout.

Compatible purifier models

Each model link returns to the model-first view with replacement interval, warnings, and related filters.

GermGuardian AC4825 Model numbers: AC4825, AC4825E · Replace every 8 months Common 22-inch tower purifier.

Compatible alternative search terms

Filter B compatible AC4825 kits

Retailer options for FLT4825

Amazon

GermGuardian FLT4825 filter

Varies by listing

Affiliate link

Price note: Check retailer listing for current price.
Availability note: Use the SKU and model notes here to confirm fit before checkout.
Link disclosure: Amazon Associates; opens with sponsored nofollow attributes.

Check retailer listing

Verify the purifier model and filter SKU on the retailer page before ordering.

GermGuardian

FLT4825 Filter B

Varies by listing

Affiliate link

Price note: Check retailer listing for current price.
Availability note: Verify model and SKU on the retailer page before ordering.
Link disclosure: GermGuardian affiliate-capable search; opens with sponsored nofollow attributes.

Check retailer listing

Verify the purifier model and filter SKU on the retailer page before ordering.