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GermGuardian · air purifier filter

GermGuardian Filter B (FLT4825)

GermGuardian FLT4825 HEPA PURE Air Purifier Filter B. Part FLT4825. Replace every 6-8 months depending on use. Fits 2 models and their listed variants.

Buy Filter B on AmazonManufacturer page

Opens an Amazon search for GermGuardian Filter B FLT4825. Check the listing says FLT4825.

Fits these models

Part numbers

Genuine part
FLT4825
Also listed as
FLT4825-01
Packs
FLT4825-02 (2-pack), FLT4825-04 (4-pack), FLT4825-12 (12-pack)
How often
Replace every 6-8 months depending on use
What is in it
HEPA filter; activated carbon pre-filter

Sources

  • Which filter fits guardiantechnologies.com Maker's own page checked Oct 1, 2026
    Replacement filter for GermGuardian Air Purifier Models AC4825E, AC4825W, ... PureGuardian Model AP2200CA and Black+Decker BXAP150
  • How many guardiantechnologies.com Maker's own page checked Oct 1, 2026
    Page for the AC4825 (per its URL): Number of Filters Included 1 ... Accessories Included Tower Air Purifier, HEPA Filter, UVC Bulb, User Manual
  • How often guardiantechnologies.com Maker's own page checked Oct 1, 2026
    GermGuardian air purifier filters should be replaced every 6–8 months depending on use.
  • What's in it guardiantechnologies.com Maker's own page checked Oct 1, 2026
    REDUCES ODORS - The activated carbon pre-filter traps dust, pet hair, and other large particles, while extending the life of the HEPA filter.
  • Packs guardiantechnologies.com Maker's own page checked Oct 1, 2026
    variants FLT4825-01: 1 pack, FLT4825-02: 2 pack, FLT4825-04: 4 pack, FLT4825-12: 12 pack
Show all 9 sources

Which filter fits

  1. guardiantechnologies.com Maker's own page checked Oct 1, 2026
    Replacement filter for GermGuardian Air Purifier Models AC4825E, AC4825W, ... PureGuardian Model AP2200CA and Black+Decker BXAP150
  2. guardiantechnologies.com Maker's own page checked Oct 1, 2026
    GermGuardian AC4825 HEPA PURE 22" Tower Air Purifier ... Add Your Replacement Filter Filter B | FLT4825
  3. guardiantechnologies.com Maker's own page checked Oct 1, 2026
    PureGuardian AP2200 HEPA PURE 22" Tower Air Purifier ... Model Compatibility FLT4825, FLT4825SM, FLT4825VO, FLT22CB4
  4. guardiantechnologies.com Maker's own page checked Oct 1, 2026
    Replacement filter for GermGuardian Air Purifier Models AC4825E, AC4825W, AC4870, AC4820, AC4880, AC4300BPTCA, AC4300WPT, AC4900CA, AC4850PT, CDAP4500BCA, CDAP4500WCA, PureGuardian Model AP2200CA and Black+Decker BXAP150

How many

  1. guardiantechnologies.com Maker's own page checked Oct 1, 2026
    Page for the AC4825 (per its URL): Number of Filters Included 1 ... Accessories Included Tower Air Purifier, HEPA Filter, UVC Bulb, User Manual
  2. guardiantechnologies.com Maker's own page checked Oct 1, 2026
    Page for the AP2200 (per its URL): Accessories Included Air Purifier, Allergen Filter, User Manual

How often

  1. guardiantechnologies.com Maker's own page checked Oct 1, 2026
    GermGuardian air purifier filters should be replaced every 6–8 months depending on use.

What's in it

  1. guardiantechnologies.com Maker's own page checked Oct 1, 2026
    REDUCES ODORS - The activated carbon pre-filter traps dust, pet hair, and other large particles, while extending the life of the HEPA filter.

Packs

  1. guardiantechnologies.com Maker's own page checked Oct 1, 2026
    variants FLT4825-01: 1 pack, FLT4825-02: 2 pack, FLT4825-04: 4 pack, FLT4825-12: 12 pack