Fits checked Oct 1, 2026 · How we check
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Blueair · air purifier filter

Blueair Classic 400 Series Particle Filter (402PF)

Classic 400 Series Particle Filter. Part 402PF. Interval not published by the maker. Fits 1 model and their listed variants.

Buy Classic 400 Series Particle Filter on AmazonManufacturer page

Opens an Amazon search for Blueair Classic 400 Series Particle Filter 402PF. Check the listing says 402PF.

Fits these models

Part numbers

Genuine part
402PF
How often
Interval not published by the maker

Sources

  • Which filter fits blueair.com Maker's own page checked Oct 1, 2026
    This filter is compatible with the following Classic family models: 402, 403, 405, 410, 450E, 455EB, 480i.
  • How often blueair.com Maker's own page checked Oct 1, 2026
    A filter change indicator light that will alert you when it's time to replace the filter. (no month figure given)
Show all 3 sources

Which filter fits

  1. blueair.com Maker's own page checked Oct 1, 2026
    This filter is compatible with the following Classic family models: 402, 403, 405, 410, 450E, 455EB, 480i.
  2. blueair.com Maker's own page checked Oct 1, 2026
    Classic 400 Series Particle Filter, sku 402PF

How often

  1. blueair.com Maker's own page checked Oct 1, 2026
    A filter change indicator light that will alert you when it's time to replace the filter. (no month figure given)