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Specialty replacement filter set

GermGuardian Filter O SMOKE CLEAR – FLT5100SM replacement filter

Filter O SMOKE CLEAR (FLT5100SM) fits GermGuardian AC3200, GermGuardian AC3250, GermGuardian AC5109W and GermGuardian AP3250 according to the cited GermGuardian source.

Official manufacturer Filter O SMOKE CLEAR FLT5100SM Check official GermGuardian availability Non-affiliate link to the cited official product page.
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Quick fit check

Filter O SMOKE CLEAR fit and replacement facts

Part numberFLT5100SM
Compatible models4
Filter roleSpecialty replacement filter set

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

Compatible GermGuardian models

Follow a model link for its complete primary, optional, specialty, and alternative filter list.

Model Filter Part number Role Source Marketplace
GermGuardian AC3200 Filter O SMOKE CLEAR FLT5100SM Specialty replacement filter set Guardian Technologies GermGuardian FLT5100SM - Filter O SMOKE CLEAR Check prices
GermGuardian AC3250 Filter O SMOKE CLEAR FLT5100SM Specialty replacement filter set Guardian Technologies GermGuardian FLT5100SM - Filter O SMOKE CLEAR Check prices
GermGuardian AC5109W Filter O SMOKE CLEAR FLT5100SM Specialty replacement filter set Guardian Technologies GermGuardian FLT5100SM - Filter O SMOKE CLEAR Check prices
GermGuardian AP3250 Filter O SMOKE CLEAR FLT5100SM Specialty replacement filter set Guardian Technologies GermGuardian FLT5100SM - Filter O SMOKE CLEAR Check prices

Buying checklist

What to check in a filter listing

Confirm that the listing names part FLT5100SM and one of the compatible models: GermGuardian AC3200, GermGuardian AC3250, GermGuardian AC5109W and GermGuardian AP3250. Similar-looking filters are not proof of fit.

Decide whether you want an OEM or aftermarket filter, then compare the included pieces, product photos, seller details, delivery estimate, and total price.

Care guidance

Replacement schedule

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

Usage conditions can affect service life. Follow the cited manufacturer guidance for this part.

Compare compatible options

These filters share at least one officially cited model within the same brand, but may serve a different primary or optional role. Check each part page before buying.

Filter O

FLT5100

Replacement filter set

Frequently asked questions

How often should I replace the GermGuardian 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.

Which GermGuardian models use the Filter O SMOKE CLEAR FLT5100SM?

According to the official GermGuardian product page, Filter O SMOKE CLEAR (FLT5100SM) fits GermGuardian AC3200, GermGuardian AC3250, GermGuardian AC5109W and GermGuardian AP3250. Verify the model label on your unit before ordering.

Do aftermarket FLT5100SM filters work?

Marketplace listings may be from the manufacturer or a third party. Match the exact part number FLT5100SM, review the listing details, and verify the model label on your unit before buying.

Manufacturer source

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

Guardian Technologies GermGuardian FLT5100SM - Filter O SMOKE CLEAR

Source compatibility checked 2026-07-22. Recheck the listing and your purifier label before ordering.