Fits checked Oct 1, 2026 · How we check
Filter Fit Finder
Menu

GermGuardian · air purifier filter

GermGuardian Filter A (FLT4010)

GermGuardian FLT4010 HEPA PURE Air Purifier Filter A. Part FLT4010. Replace every 6-8 months depending on use. Fits 1 model and their listed variants.

Buy Filter A on AmazonManufacturer page

Opens an Amazon search for GermGuardian Filter A FLT4010. Check the listing says FLT4010.

Fits these models

Part numbers

Genuine part
FLT4010
How often
Replace every 6-8 months depending on use

Sources

  • Which filter fits guardiantechnologies.com Maker's own page checked Oct 1, 2026
    Replacement filter for GermGuardian Air Purifier Models AC4010 & AC4020 and Black+Decker BXAP040
  • How often guardiantechnologies.com Maker's own page checked Oct 1, 2026
    Only one single combination filter needs to be replaced every 6-8 months depending on the use of the product.