Air Filter LookupAir purifier filter finder

GermGuardian air purifier

GermGuardian BXAP250 replacement filter

GermGuardian BXAP250 uses Filter C Carbon Replacement Filters (4-Pack) (part FLT28CB4) as its primary replacement filter set.

Official GermGuardian fit · checked

Same filter, other models

Other GermGuardian purifiers that use Filter C Carbon Replacement Filters (4-Pack) FLT28CB4

Own more than one purifier? These models share the same official part number.

All compatible GermGuardian BXAP250 filters

Primary filters are listed first. Specialty, optional, and alternative filters also fit, but you only need them if you want that feature.

Filter Part number Type Price
Filter C Carbon Replacement Filters (4-Pack) FLT28CB4 Replacement carbon pre-filter pack Check price
Filter C SMOKE CLEAR FLT5000SM Specialty replacement filter set Check price
Filter C TOXIN CLEAR FLT5000VO Specialty replacement filter set Check price

Price links open sponsored eBay searches for the exact part number.

Official package contents

What's in the box

From the linked official GermGuardian product page. Marketplace packs can differ, so compare before you buy.

Filter C Carbon Replacement Filters (4-Pack) FLT28CB4

Before you order

How to buy the right GermGuardian BXAP250 filter

  • Confirm the label on your purifier reads BXAP250.
  • Make sure the listing names part FLT28CB4, not just a similar-looking filter.
  • Check the pack size and pieces included. Genuine and third-party filters can differ.
  • Compare the total price with shipping, plus the seller's feedback and delivery estimate.

Care guidance

Replacement schedule

  • Filter C Carbon Replacement Filters (4-Pack) FLT28CB4: GermGuardian recommends replacing the activated carbon filter layer every 2 to 3 months depending on use. Package contains 4 carbon replacement filters.

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

Free calendar reminder

Never forget a filter change

Enter the date you installed the filter and we'll make a repeating calendar reminder based on the official replacement schedule.

Filter C Carbon Replacement Filters (4-Pack) filter set FLT28CB4

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.

Frequently asked questions

What filter does the GermGuardian BXAP250 use?

The GermGuardian BXAP250 uses Filter C Carbon Replacement Filters (4-Pack) (FLT28CB4) as its primary replacement filter parts. It also has these optional, specialty, or alternative compatible parts: Filter C SMOKE CLEAR (FLT5000SM), Filter C TOXIN CLEAR (FLT5000VO). Those parts are not simultaneously required primary filters.

How often should I replace the GermGuardian BXAP250 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 BXAP250?

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.

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 C Carbon Replacement Filters (4-Pack) FLT28CB4

Official Guardian Technologies product page identifies Filter C carbon replacement filter 4-pack, SKU FLT28CB4, as compatible with models AC5000, AC5300, AC5350, AP2800, BXAP250, CDAP5500 and IAP-GG-125.

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

Filter C SMOKE CLEAR FLT5000SM

Official Guardian Technologies product page identifies Filter C SMOKE CLEAR, SKU FLT5000SM, as compatible with models AC5000, AC5250PT, AC5300B, AC5350B, AC5350W, AP2800, BXAP250, CDAP5500BCA, CDAP5500WSP and IAP-GG-125.

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

Filter C TOXIN CLEAR FLT5000VO

Official Guardian Technologies product page identifies Filter C TOXIN CLEAR, SKU FLT5000VO, as compatible with models AC5000, AC5250PT, AC5300B, AC5350B, AC5350W, AP2800, BXAP250, CDAP5500BCA, CDAP5500WSP and IAP-GG-125.

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

Keep browsing

See all GermGuardian models