Fits checked Oct 1, 2026 · How we check
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GermGuardian · air purifier filter

GermGuardian Filter E (FLT4100)

GermGuardian FLT4100 HEPA PURE Air Purifier Filter E. Part FLT4100. Replace every 6-8 months depending on use. Fits 1 model.

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Opens an Amazon search for GermGuardian Filter E FLT4100. Check the listing says FLT4100.

Fits these models

Part numbers

Genuine part
FLT4100
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 Model AC4100, AC4175, AC4150PCA and AC4150BLCA
  • 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