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GermGuardian AC3250 replacement filter

GermGuardian AC3250 has 4 primary replacement filter parts: FLT5100, FLT5100PT, FLT5100SM, FLT5100VO. Match the role and part number before ordering.

Quick fit check

Match the exact filter before buying

The official manufacturer source identifies these primary parts for the GermGuardian AC3250.

Replacement filter set Filter O FLT5100
View part details Official GermGuardian source
Specialty replacement filter set Filter O PET PURE FLT5100PT
View part details Official GermGuardian source
Specialty replacement filter set Filter O SMOKE CLEAR FLT5100SM
View part details Official GermGuardian source
Specialty replacement filter set Filter O TOXIN CLEAR FLT5100VO
View part details Official GermGuardian source

All compatible part numbers

Primary, optional, specialty, and alternative filters are listed separately so you can match the role as well as the part number.

Filter Part number Role Source
Filter O FLT5100 Replacement filter set Guardian Technologies GermGuardian FLT5100 - Filter O
Filter O PET PURE FLT5100PT Specialty replacement filter set Guardian Technologies GermGuardian FLT5100PT - Filter O PET PURE
Filter O SMOKE CLEAR FLT5100SM Specialty replacement filter set Guardian Technologies GermGuardian FLT5100SM - Filter O SMOKE CLEAR
Filter O TOXIN CLEAR FLT5100VO Specialty replacement filter set Guardian Technologies GermGuardian FLT5100VO - Filter O TOXIN CLEAR

Official compatibility record

Manufacturer evidence

Each compatibility and care statement below is reproduced from the cited official manufacturer record. Check the source again before ordering.

Filter O FLT5100

Official Guardian Technologies product page identifies Filter O, SKU FLT5100, as compatible with models AC3200, AC3250, AC5109 and AP3250.

Source checked
Replacement guidance
The cited page describes FLT5100 as a True HEPA and treated-carbon replacement filter but does not state a replacement interval.
Guidance checked

Filter O PET PURE FLT5100PT

Official Guardian Technologies product page identifies Filter O PET PURE, SKU FLT5100PT, as compatible with models AC3200, AC3250, AC5109W and AP3250.

Source checked
Replacement guidance
GermGuardian recommends replacing the Pet Pure HEPA filter set every 6 months. Carbon filters (FLT28CB4) can be replaced every 2 to 3 months.
Guidance checked

Filter O SMOKE CLEAR FLT5100SM

Official Guardian Technologies product page identifies Filter O SMOKE CLEAR, SKU FLT5100SM, as compatible with models AC3200, AC3250, AC5109W and AP3250.

Source checked
Replacement guidance
GermGuardian recommends replacing the Smoke Clear HEPA filter set every 6 months. Carbon filters (FLT28CB4) can be replaced every 2 to 3 months.
Guidance checked

Filter O TOXIN CLEAR FLT5100VO

Official Guardian Technologies product page identifies Filter O TOXIN CLEAR, SKU FLT5100VO, as compatible with models AC3200, AC3250, AC5109W and AP3250.

Source checked
Replacement guidance
GermGuardian recommends replacing the Toxin Clear HEPA filter set every 6 months. Carbon filters (FLT28CB4) can be replaced every 2 to 3 months.
Guidance checked

Buying checklist

How to choose the right replacement

Match the GermGuardian AC3250 model label and the exact part number above. Marketplace listings can be OEM or aftermarket, and a similar-looking filter may have different dimensions.

Compare the listing title, product photos, included filter pieces, seller details, delivery estimate, and total price before you order.

Care guidance

Replacement schedule

  • Filter O FLT5100: The cited page describes FLT5100 as a True HEPA and treated-carbon replacement filter but does not state a replacement interval.
  • Filter O PET PURE FLT5100PT: GermGuardian recommends replacing the Pet Pure HEPA filter set every 6 months. Carbon filters (FLT28CB4) can be replaced every 2 to 3 months.
  • Filter O SMOKE CLEAR FLT5100SM: GermGuardian recommends replacing the Smoke Clear HEPA filter set every 6 months. Carbon filters (FLT28CB4) can be replaced every 2 to 3 months.
  • Filter O TOXIN CLEAR FLT5100VO: GermGuardian recommends replacing the Toxin Clear HEPA filter set every 6 months. Carbon filters (FLT28CB4) can be replaced every 2 to 3 months.

Usage and air quality can affect service life. Follow the cited manufacturer guidance for each part.

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Frequently asked questions

What filter does the GermGuardian AC3250 use?

The GermGuardian AC3250 uses Filter O (FLT5100), Filter O PET PURE (FLT5100PT), Filter O SMOKE CLEAR (FLT5100SM), Filter O TOXIN CLEAR (FLT5100VO). Each part number on this page is backed by an official GermGuardian source.

How often should I replace the GermGuardian AC3250 filter?

The cited page describes FLT5100 as a True HEPA and treated-carbon replacement filter but does not state a replacement interval.

Where can I check replacement filters for the GermGuardian AC3250?

This page links directly to the cited official GermGuardian product page and shows sponsored individual eBay listings when a fresh exact-part snapshot is available, with an exact-part eBay search fallback. This site does not sell filters; match the part number and review the current source or seller listing before buying.