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Standard replacement filter

Blueair Blue Pure 121 Particle + Carbon Filter F121PACF104507 replacement filter

Blue Pure 121 Particle + Carbon Filter (part F121PACF104507) fits Blueair Blue Pure 121, according to the official Blueair product page.

Official Blueair fit · checked

Blueair models that use Blue Pure 121 Particle + Carbon Filter F121PACF104507

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 F121PACF104507 listing

  • The listing names part F121PACF104507. Similar-looking filters are not proof of fit.
  • Your purifier is one of the compatible models: Blueair Blue Pure 121.
  • 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

Blueair recommends replacing the filter about every 6 months of continuous operation.

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

Compare compatible options

These share at least one compatible model but may do a different job, such as a carbon pre-filter or a specialty version. Check each part page before buying.

Frequently asked questions

How often should I replace the Blueair Blue Pure 121 Particle + Carbon Filter (F121PACF104507)?

Blueair recommends replacing the filter about every 6 months of continuous operation.

Which Blueair models use the Blue Pure 121 Particle + Carbon Filter F121PACF104507?

According to the official Blueair product page, Blue Pure 121 Particle + Carbon Filter (F121PACF104507) fits Blueair Blue Pure 121. Verify the model label on your unit before ordering.

Do aftermarket F121PACF104507 filters work?

Marketplace listings may be from the manufacturer or a third party. Match the exact part number F121PACF104507, review the listing details, and verify the model label on your unit before buying.

Official compatibility record

Manufacturer source

Official Blueair documentation identifies Blue Pure 121 Particle + Carbon Filter, SKU F121PACF104507, as compatible with Blue Pure 121.

Blueair Official Blue Pure 121 Particle + Carbon Filter

Source compatibility checked 2026-08-29. Recheck the listing and your purifier label before ordering.