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

Blueair Blue Pure 311 Auto replacement filter

Use part F311PACF105618. Replacement indicator lights after about 6 months of operation.

The filter that fits

Maker lists this model

Blueair 311 Auto Particle + Carbon Filter

Blue Pure 311 Auto Series Particle + Carbon Filter

Part number
F311PACF105618
How many
1 per unit
How often
Replacement indicator lights after about 6 months of operation

Blueair does not state how many of these filters the unit holds; the count of one shown here is not stated by the maker.

Buy 311 Auto Particle + Carbon Filter on AmazonManufacturer page

Opens an Amazon search for Blueair 311 Auto Particle + Carbon Filter F311PACF105618. Check the listing says F311PACF105618.

See the sources

Does your exact model share this filter?

Blueair labels several versions of the Blue Pure 311 Auto. Check the label on your unit.

  • Blue Pure 311 Auto takes F311PACF105618
  • Blue Pure 311 different filter · Takes F311PACF108589.

Look-alike models that take a different filter

The plain 311 takes F311PACF108589, and the 311i Max and 311i+ Max take F3MAX and F3MAX+.

Other genuine options from Blueair

Variants and kits the maker sells for this model. Same fit, different media or packaging.

Sources

High confidence: the manufacturer names this exact model on a live page. Each line is the page we read and the day we read it.

  • Which filter fits blueair.com Maker's own page checked Oct 1, 2026
    Compatible with Blue Pure 311 Auto ... This filter is compatible with the Blue Pure 311 Auto air purifier.
  • How often blueair.com Maker's own page checked Oct 1, 2026
    A red filter replacement indicator appears on the air purifier when it is time to change filter, after about 6 months of operation.
  • 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 311 Auto ... This filter is compatible with the Blue Pure 311 Auto air purifier.
  2. blueair.com Maker's own page checked Oct 1, 2026
    Blue Pure 311 Auto Series Particle + Carbon Filter, sku F311PACF105618

How often

  1. blueair.com Maker's own page checked Oct 1, 2026
    A red filter replacement indicator appears on the air purifier when it is time to change filter, after about 6 months of operation.

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