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Standard replacement filter

Blueair Classic 400 Series Particle Filter – 402PF replacement filter

Classic 400 Series Particle Filter (402PF) fits Blueair Classic 402, Blueair Classic 403, Blueair Classic 405 and 4 more models according to the cited Blueair source.

Official manufacturer Classic 400 Series Particle Filter 402PF Check official Blueair availability Non-affiliate link to the cited official product page.
Marketplace search Check eBay prices for 402PF Sponsored eBay links. We may earn a commission from qualifying purchases.

Quick fit check

Classic 400 Series Particle Filter fit and replacement facts

Part number402PF
Compatible models7
Filter roleStandard replacement filter

Blueair recommends replacing the filter every 6 months under 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 Classic 402 Classic 400 Series Particle Filter 402PF Standard replacement filter Blueair Official Classic 400 Series Particle Filter Check prices
Blueair Classic 403 Classic 400 Series Particle Filter 402PF Standard replacement filter Blueair Official Classic 400 Series Particle Filter Check prices
Blueair Classic 405 Classic 400 Series Particle Filter 402PF Standard replacement filter Blueair Official Classic 400 Series Particle Filter Check prices
Blueair Classic 410 Classic 400 Series Particle Filter 402PF Standard replacement filter Blueair Official Classic 400 Series Particle Filter Check prices
Blueair Classic 450E Classic 400 Series Particle Filter 402PF Standard replacement filter Blueair Official Classic 400 Series Particle Filter Check prices
Blueair Classic 455EB Classic 400 Series Particle Filter 402PF Standard replacement filter Blueair Official Classic 400 Series Particle Filter Check prices
Blueair Classic 480i Classic 400 Series Particle Filter 402PF Standard replacement filter Blueair Official Classic 400 Series Particle Filter Check prices

Buying checklist

What to check in a filter listing

Confirm that the listing names part 402PF and one of the compatible models: Blueair Classic 402, Blueair Classic 403, Blueair Classic 405 and 4 more models. 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 every 6 months under 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 Classic 400 Series Particle Filter (402PF)?

Blueair recommends replacing the filter every 6 months under continuous operation.

Which Blueair models use the Classic 400 Series Particle Filter 402PF?

According to the official Blueair product page, Classic 400 Series Particle Filter (402PF) fits Blueair Classic 402, Blueair Classic 403, Blueair Classic 405 and 4 more models. Verify the model label on your unit before ordering.

Do aftermarket 402PF filters work?

Marketplace listings may be from the manufacturer or a third party. Match the exact part number 402PF, review the listing details, and verify the model label on your unit before buying.

Manufacturer source

Official Blueair documentation identifies Classic 400 Series Particle Filter, SKU 402PF, as compatible with Classic 402, Classic 403, Classic 405, Classic 410, Classic 450E, Classic 455EB, and Classic 480i.

Blueair Official Classic 400 Series Particle Filter

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