Replacement filter set
GermGuardian Filter U FLT6100 replacement filter
Filter U (part FLT6100) fits GermGuardian AP6100, according to the official GermGuardian product page.
Official GermGuardian fit · checked
GermGuardian models that use Filter U FLT6100
This filter is listed for one model. Open a model to see its complete list of primary, optional, and specialty filters.
Before you order
What to check in a FLT6100 listing
- The listing names part FLT6100. Similar-looking filters are not proof of fit.
- Your purifier is one of the compatible models: GermGuardian AP6100.
- The pack size and pieces included match what you need. Genuine and third-party filters can differ.
- The total price with shipping, seller feedback, and delivery estimate work for you.
Care guidance
Replacement schedule
The cited page describes FLT6100 as a HEPA and charcoal replacement filter but does not state a replacement interval.
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 U (FLT6100)?
The cited page describes FLT6100 as a HEPA and charcoal replacement filter but does not state a replacement interval.
Which GermGuardian models use the Filter U FLT6100?
According to the official GermGuardian product page, Filter U (FLT6100) fits GermGuardian AP6100. Verify the model label on your unit before ordering.
Do aftermarket FLT6100 filters work?
Marketplace listings may be from the manufacturer or a third party. Match the exact part number FLT6100, review the listing details, and verify the model label on your unit before buying.
Official compatibility record
Manufacturer source
Official Guardian Technologies product page identifies Filter U, SKU FLT6100, as compatible with model AP6100.
Guardian Technologies GermGuardian FLT6100 - Filter U
Source compatibility checked 2026-08-29. Recheck the listing and your purifier label before ordering.
GermGuardian Filter U FLT6100