Replacement filter set
GermGuardian Filter T – FLT406 replacement filter
Filter T (FLT406) fits GermGuardian APH406W according to the cited GermGuardian source.
FLT406
Check official GermGuardian availability
Non-affiliate link to the cited official product page.
Quick fit check
Filter T fit and replacement facts
GermGuardian recommends replacing the combination HEPA and charcoal filter every 6 to 8 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 APH406W | Filter T | FLT406 |
Replacement filter set | Guardian Technologies GermGuardian FLT406 - Filter T | Check prices |
Buying checklist
What to check in a filter listing
Confirm that the listing names part FLT406 and one of the compatible models: GermGuardian APH406W. 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 combination HEPA and charcoal filter every 6 to 8 months.
Usage conditions can affect service life. Follow the cited manufacturer guidance for this part.
Frequently asked questions
How often should I replace the GermGuardian Filter T (FLT406)?
GermGuardian recommends replacing the combination HEPA and charcoal filter every 6 to 8 months.
Which GermGuardian models use the Filter T FLT406?
According to the official GermGuardian product page, Filter T (FLT406) fits GermGuardian APH406W. Verify the model label on your unit before ordering.
Do aftermarket FLT406 filters work?
Marketplace listings may be from the manufacturer or a third party. Match the exact part number FLT406, review the listing details, and verify the model label on your unit before buying.
Manufacturer source
Official Guardian Technologies product page identifies Filter T, SKU FLT406, as compatible with model APH406W.
Guardian Technologies GermGuardian FLT406 - Filter T
Source compatibility checked 2026-07-22. Recheck the listing and your purifier label before ordering.