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Standard replacement filter

Blueair Blue Pure 121 Particle + Carbon Filter – F121PACF104507 replacement filter

Blue Pure 121 Particle + Carbon Filter (F121PACF104507) fits Blueair Blue Pure 121 according to the cited Blueair source.

Official manufacturer Blue Pure 121 Particle + Carbon Filter F121PACF104507 Check official Blueair availability Non-affiliate link to the cited official product page.
Marketplace search Check eBay prices for F121PACF104507 Sponsored eBay links. We may earn a commission from qualifying purchases.

Quick fit check

Blue Pure 121 Particle + Carbon Filter fit and replacement facts

Part numberF121PACF104507
Compatible models1
Filter roleStandard replacement filter

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

Compatible Blueair models

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

Model Filter Part number Role Source Marketplace
Blueair Blue Pure 121 Blue Pure 121 Particle + Carbon Filter F121PACF104507 Standard replacement filter Blueair Official Blue Pure 121 Particle + Carbon Filter Check prices

Buying checklist

What to check in a filter listing

Confirm that the listing names part F121PACF104507 and one of the compatible models: Blueair Blue Pure 121. 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

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 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.

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.

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