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

Blueair 311i+ Max Particle + Carbon Filter (F3MAX+)

Blue Pure 311i+ Max Particle + Carbon Filter. Part F3MAX+. Lasts up to 9 months depending on usage. Fits 1 model and their listed variants.

Buy 311i+ Max Particle + Carbon Filter on AmazonManufacturer page

Opens an Amazon search for Blueair 311i+ Max Particle + Carbon Filter F3MAX+. Check the listing says F3MAX+.

Fits these models

Part numbers

Genuine part
F3MAX+
Also listed as
110038
How often
Lasts up to 9 months depending on usage
What is in it
main filter media (dust, pollen, pet dander); activated carbon (light household odors)

Sources

  • Which filter fits blueair.com Maker's own page checked Oct 1, 2026
    Compatible with Blue Pure 311i+ Max ... This filter is compatible only with the Blue Pure Max 311i+ air purifier.
  • How often blueair.com Maker's own page checked Oct 1, 2026
    Depending on usage, your filter will last up to 9 months.
  • What's in it blueair.com Maker's own page checked Oct 1, 2026
    Main filter captures dust mite matter allergen & pet dander allergen ... Activated Carbon Traps light household odors from smoke, cooking odors and more
Show all 4 sources

Which filter fits

  1. blueair.com Maker's own page checked Oct 1, 2026
    Compatible with Blue Pure 311i+ Max ... This filter is compatible only with the Blue Pure Max 311i+ air purifier.
  2. blueair.com Maker's own page checked Oct 1, 2026
    Blue Pure 311i+ Max Particle + Carbon Filter, sku 110038: "F3MAX+ replacement PAC filter for 311i+ Max (3450i)"

How often

  1. blueair.com Maker's own page checked Oct 1, 2026
    Depending on usage, your filter will last up to 9 months.

What's in it

  1. blueair.com Maker's own page checked Oct 1, 2026
    Main filter captures dust mite matter allergen & pet dander allergen ... Activated Carbon Traps light household odors from smoke, cooking odors and more