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GermGuardian replacement filter

GermGuardian Filter O console models

GermGuardian lists HEPA PURE Filter O 360-degree combination filter, FLT5100, for the US model codes below. The Amazon action searches this reference; no exact retail product or pack has been approved.

Models listed by the manufacturer

  • AC3200
  • AC3250
  • AC5109
  • AP3250
  • AC5109W

Models checked: US. Match the full code on your label.

Where is my model number?

Before you buy

  • Specialty Filter O references FLT5100PT, FLT5100SM and FLT5100VO are separate product variants, not part-number aliases added here.
  • No other AC5109 suffix is inferred.
  • These manufacturer-listed model codes cover US specifications. Another regional variant needs its own check.
  • The Amazon action is a reference search; no exact retail product, seller or pack has been approved.
Find the complete model code
  1. Read the complete GermGuardian model on the purifier label and retain every letter, digit and suffix.
  2. Match the label with one of the manufacturer-listed US codes on this page.
  3. Compare FLT5100, components and quantity on the final merchant listing; the search does not approve the listed item or pack.
Filter and fitting details
  • Filter overview and Product Features explicitly list AC3200, AC3250, AC5109 and AP3250. The separate AC5109W product page names standard FLT5100.
  • The AC5109W purifier page separately names FLT51CB4 carbon filters and LB5100 UV-C bulb.

Manufacturer sources

Documentation checked Oct 12, 2026 by Codex (manufacturer documentation). We have not physically tested these filters.

GermGuardian filterFLT5100
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