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GermGuardian AC151 replacement filter

GermGuardian AC151 has 2 primary replacement filter parts: FLT15CB4, FLT151. Match the role and part number before ordering.

GermGuardian AC151 filter match

Replacement carbon pre-filter pack Filter V Carbon Replacement Filters (4-Pack) FLT15CB4
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View part details Official GermGuardian source
Replacement filter set Filter V FLT151
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View part details Official GermGuardian source

Cited package contents

Package details below come from the linked official source; recheck it before buying.

Filter V Carbon Replacement Filters (4-Pack) FLT15CB4

All compatible part numbers

Primary filters are listed first. Specialty, optional, and alternative filters are compatible options, not required add-ons.

Filter Part number Role Source Marketplace
Filter V Carbon Replacement Filters (4-Pack) FLT15CB4 Replacement carbon pre-filter pack Guardian Technologies GermGuardian FLT15CB4 - Filter V Carbon 4-Pack Check prices
Filter V FLT151 Replacement filter set Guardian Technologies GermGuardian FLT151 - Filter V Check prices
Filter V PET PURE FLT151PT Specialty replacement filter set Guardian Technologies GermGuardian FLT151PT - Filter V PET PURE Check prices
Filter V SMOKE CLEAR FLT151SM Specialty replacement filter set Guardian Technologies GermGuardian FLT151SM - Filter V SMOKE CLEAR Check prices
Filter V TOXIN CLEAR FLT151VO Specialty replacement filter set Guardian Technologies GermGuardian FLT151VO - Filter V TOXIN CLEAR Check prices

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 V Carbon Replacement Filters (4-Pack) FLT15CB4

Official Guardian Technologies product page identifies Filter V carbon replacement filter 4-pack, SKU FLT15CB4, as compatible with models AC151, AC3000, AC3050 and AP3151.

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Replacement guidance
GermGuardian recommends replacing the activated carbon filter layer every 2 to 3 months depending on use. Package contains 4 carbon replacement filters.
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Filter V FLT151

Official Guardian Technologies product page identifies Filter V, SKU FLT151, as compatible with models AC151, AC3000, AC3050 and AP3151.

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Replacement guidance
GermGuardian recommends replacing the 360-degree True HEPA and carbon filter set every 6 to 8 months.
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Filter V PET PURE FLT151PT

Official Guardian Technologies product page identifies Filter V PET PURE, SKU FLT151PT, as compatible with models AC151, AC3000, AC3050 and AP3151.

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Replacement guidance
GermGuardian recommends replacing the Pet Pure HEPA filter every 6 months. Carbon filters (FLT15CB4) can be replaced every 2 to 3 months.
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Filter V SMOKE CLEAR FLT151SM

Official Guardian Technologies product page identifies Filter V SMOKE CLEAR, SKU FLT151SM, as compatible with models AC151, AC3000, AC3050 and AP3151.

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Replacement guidance
GermGuardian recommends replacing the Smoke Clear HEPA filter set every 6 to 8 months.
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Filter V TOXIN CLEAR FLT151VO

Official Guardian Technologies product page identifies Filter V TOXIN CLEAR, SKU FLT151VO, as compatible with models AC151, AC3000, AC3050 and AP3151.

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Replacement guidance
GermGuardian recommends replacing the Toxin Clear HEPA filter set every 6 months. Carbon filters (FLT15CB4) can be replaced every 2 to 3 months.
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Buying checklist

How to choose the right replacement

Match the GermGuardian AC151 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 V Carbon Replacement Filters (4-Pack) FLT15CB4: GermGuardian recommends replacing the activated carbon filter layer every 2 to 3 months depending on use. Package contains 4 carbon replacement filters.
  • Filter V FLT151: GermGuardian recommends replacing the 360-degree True HEPA and carbon filter set every 6 to 8 months.

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

Optional calendar tool

Plan your next filter change

Choose a date to download a calendar reminder based on the cited replacement guidance.

Filter V Carbon Replacement Filters (4-Pack) filter set FLT15CB4

The calendar reminder starts 3 months after this date and repeats on that schedule.

Your date is processed only in this browser. The .ics calendar file is generated locally on your device and is not uploaded to this site.

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Frequently asked questions

What filter does the GermGuardian AC151 use?

The GermGuardian AC151 uses Filter V Carbon Replacement Filters (4-Pack) (FLT15CB4), Filter V (FLT151) as its primary replacement filter parts. It also has these optional, specialty, or alternative compatible parts: Filter V PET PURE (FLT151PT), Filter V SMOKE CLEAR (FLT151SM), Filter V TOXIN CLEAR (FLT151VO). Those parts are not simultaneously required primary filters.

How often should I replace the GermGuardian AC151 filter?

GermGuardian recommends replacing the activated carbon filter layer every 2 to 3 months depending on use. Package contains 4 carbon replacement filters.

Where can I check replacement filters for the GermGuardian AC151?

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.