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5 Best Blueair 311i Max Replacement Filters (October 2026)

Updated on Β· By the Air Purifier Kit team

The best Blueair 311i Max replacement filters include the BLUEAIR Genuine Blue Pure 311i Max Air for a confirmed 311i Max fit, the WILERDA 2 Pack 311i Max Replacement Filter for keeping a spare on hand, and the Bluearks 2Pcs Blue Pure 311i Max Air for a two-filter compatible set.

On this page (5 sections)
  1. Which replacement filters fit the Blueair 311i Max?
  2. Best Blueair 311i Max replacement filters
  3. How do you choose a Blueair 311i Max filter?
  4. Are Blueair 311i Max and 311i+ Max filters interchangeable?
  5. Which Blueair 311i Max filter should you choose?

The best Blueair 311i Max replacement filter for a confirmed model match is the genuine BLUEAIR F3MAX filter. WILERDA, Bluearks and NXBHG offer two-filter compatible sets for the 311i Max, but none of those options here is identified for the 311i+ Max.

The names are easy to mix up. Blue Pure 311i Max and Blue Pure 311i+ Max are different model names.

The filters in this roundup have explicit compatibility limits. Check the model label on your purifier before choosing a Blueair Blue Pure 311i Max filter.

Our picks at a glance

  1. 1 BLUEAIR Genuine Blue Pure 311i Max Air
    Best for a confirmed 311i Max fit

    BLUEAIR Genuine Blue Pure 311i Max Air

    9.7/10 our score

    See it on Amazon
  2. 2 WILERDA 2 Pack 311i Max Replacement Filter
    Best for keeping a spare on hand

    WILERDA 2 Pack 311i Max Replacement Filter

    9.6/10 our score

    See it on Amazon
  3. 3 Bluearks 2Pcs Blue Pure 311i Max Air
    Best for a two-filter compatible set

    Bluearks 2Pcs Blue Pure 311i Max Air

    9.4/10 our score

    See it on Amazon
  1. 4NXBHG πŸ‘πŸπŸπ’ 𝐌𝐚𝐱 Replacement Filter Compatible

    NXBHG πŸ‘πŸπŸπ’ 𝐌𝐚𝐱 Replacement Filter Compatible

    Best for a two-in-one filter set
    Check it
  2. 5BLUEAIR Genuine 311 Air Purifier Replacement Filter

    BLUEAIR Genuine 311 Air Purifier Replacement Filter

    Best for the Blue Pure 311
    Check it

Which replacement filters fit the Blueair 311i Max?

The genuine BLUEAIR F3MAX and the three compatible sets below are stated for the Blue Pure 311i Max. Their model exclusions make careful checking essential, especially if your purifier is a 311i+ Max.

We compared the stated model fit, filter type and pack size to help narrow the choice. Our score weighs specs, features and buyer feedback against what you're shopping for.

The Blueair 311i+ Max replacement filter is not established as a fit for any of the four 311i Max options here.

If you have the 211i Max, use our guide to the best Blueair 211i Max replacement filter instead. That model has its own filter choices.

ProductBest forModel fitConstructionPack sizeOur score
BLUEAIR Genuine Blue Pure 311i Max Aira confirmed 311i Max fitBlue Pure 311i Max onlyPleated1 filter9.7
WILERDA 2 Pack 311i Max Replacement Filterkeeping a spare on hand311i Max; not 311i+ MaxPleated2 filters9.6
Bluearks 2Pcs Blue Pure 311i Max Aira two-filter compatible setBlue Pure 311i Max; not 311i+ Max2 filters9.4
NXBHG πŸ‘πŸπŸπ’ 𝐌𝐚𝐱 Replacement Filter Compatiblea two-in-one filter set311i Max; not 311i+ Max2 filters9.1
BLUEAIR Genuine 311 Air Purifier Replacement Filterthe Blue Pure 311Blue Pure 311 only1 filter8.9

Best Blueair 311i Max replacement filters

The genuine Blueair filter leads for shoppers who want an explicitly named match, while the compatible options offer two filters per pack. The last pick is for the non-i Blue Pure 311 and should not be used as a 311i Max substitute.

1. BLUEAIR Genuine Blue Pure 311i Max Air

1

BLUEAIR Genuine Blue Pure 311i Max Air: Best for a confirmed 311i Max fit

BLUEAIR Genuine Blue Pure 311i Max Air, Blueair 311i Max replacement filters
9.7/10Our score
  • Genuine Blueair filter
  • For Blue Pure 311i Max
  • Pleated construction

The genuine F3MAX replacement is made for the Blue Pure 311i Max. Blueair says it is not compatible with the 311i+ Max or 311 Auto.

See it on Amazon

Pros

  • Genuine Blueair filter
  • Model fit is stated clearly

Cons

  • Not for the 311i+ Max

This genuine Blueair filter is designed for the Blue Pure 311i Max and is identified as the F3MAX replacement. Its stated fit is useful if you want to avoid guessing between compatible filter options.

The important limit is just as clear: Blueair says this filter is not compatible with the Blue Pure 311i+ Max or 311 Auto. Check the complete purifier model name before you order, even though the two Max names look similar.

The filter has pleated construction and comes as one replacement filter. Blueair describes the filter as using HEPASilent dual filtration and an activated carbon component, but those are brand claims rather than independently verified results in this guide.

Choose this when your purifier is the 311i Max and you prefer the genuine Blueair replacement. If yours is the 311i+ Max, check that model's exact filter requirements instead.

BLUEAIR Genuine Blue Pure 311i Max AirCheck it on Amazon

2. WILERDA 2 Pack 311i Max Replacement Filter

2

WILERDA 2 Pack 311i Max Replacement Filter: Best for keeping a spare on hand

WILERDA 2 Pack 311i Max Replacement Filter, Blueair 311i Max replacement filters
9.6/10Our score
  • Two filters
  • For Blue Pure 311i Max
  • Activated carbon layer

This two-filter compatible set is for the Blue Pure 311i Max. WILERDA says it is not for the 311i+ Max, so check the model name before ordering.

See it on Amazon

Pros

  • Two filters in the pack
  • Carbon layer helps reduce common household odors

Cons

  • Not for the 311i+ Max

WILERDA's compatible set includes two filters for the Blue Pure 311i Max. The stated compatibility also names the F3MAX and BLUEAIR HEPASilent Air Cleaner, while excluding the 311i+ Max and several other Blueair models.

The filter has pleated construction and an activated carbon layer. WILERDA says that layer helps reduce common household odors associated with cooking, pets and smoke.

A two-pack may suit you if you prefer keeping a replacement ready for the next change. WILERDA recommends replacing it every 6 months based on actual use, so follow your purifier's indicator and instructions as well.

The key buying check remains the model. This is not presented as a Blueair 311i+ Max filter, and it should not be ordered for that purifier based on the similar name alone.

WILERDA 2 Pack 311i Max Replacement FilterCheck it on Amazon

3. Bluearks 2Pcs Blue Pure 311i Max Air

3

Bluearks 2Pcs Blue Pure 311i Max Air: Best for a two-filter compatible set

Bluearks 2Pcs Blue Pure 311i Max Air, Blueair 311i Max replacement filters
9.4/10Our score
  • Two filters
  • For Blue Pure 311i Max
  • Tool-free replacement

Bluearks offers two F3MAX compatible filters for the Blue Pure 311i Max. Its stated exclusions include the 311i+ Max and several other Blueair models.

See it on Amazon

Pros

  • Two filters in the pack
  • Tool-free replacement

Cons

  • Not for the 311i+ Max

Bluearks packages two F3MAX compatible filters for the Blue Pure 311i Max. The brand explicitly excludes the 311i+ Max, as well as the Blue Pure 311, 311 Auto, 311i, 211 series and 511 series.

The set is described as having a high-efficiency filtration layer for common airborne particles such as dust, pollen and pet dander. Bluearks also describes installation as tool-free.

The two-filter pack can make sense if you want a spare from the same compatible set. Confirm your purifier is specifically the 311i Max, since the exclusions cover several nearby model names.

Bluearks does not state a fixed replacement interval in the provided product information. Replace according to your purifier's guidance and the conditions in your home.

Bluearks 2Pcs Blue Pure 311i Max AirCheck it on Amazon

4. NXBHG πŸ‘πŸπŸπ’ 𝐌𝐚𝐱 Replacement Filter Compatible

4

NXBHG πŸ‘πŸπŸπ’ 𝐌𝐚𝐱 Replacement Filter Compatible: Best for a two-in-one filter set

NXBHG πŸ‘πŸπŸπ’ 𝐌𝐚𝐱 Replacement Filter Compatible, Blueair 311i Max replacement filters
9.1/10Our score
  • Two filters
  • Particle and activated carbon layers
  • For Blue Pure 311i Max

NXBHG describes this as a two-filter compatible set for the Blue Pure 311i Max. It specifically excludes the 311i+ Max, 311, and 311 Auto.

See it on Amazon

Pros

  • Two filters in the pack
  • Particle and activated carbon layers

Cons

  • Not for the 311i+ Max

NXBHG includes two compatible filters for the Blueair Blue Pure 311i Max. It describes the filter as having particle and activated carbon layers and names F3MAX as the comparable part number.

The compatibility note excludes the 311i+ Max, 311, 311 Auto, 211+, 411i Max, 411a Max and 511 models. This long list is a reason to check the purifier's model label rather than relying on a search result or a shortened product name.

NXBHG recommends replacement within 6 to 9 months. Actual timing depends on use and indoor conditions, so check your purifier's filter indicator and manual too.

Choose this if you want a two-filter compatible set and your unit is confirmed as the 311i Max. Don't treat it as a fit for the 311i+ Max.

NXBHG πŸ‘πŸπŸπ’ 𝐌𝐚𝐱 Replacement Filter CompatibleCheck it on Amazon

5. BLUEAIR Genuine 311 Air Purifier Replacement Filter

5

BLUEAIR Genuine 311 Air Purifier Replacement Filter: Best for the Blue Pure 311

BLUEAIR Genuine 311 Air Purifier Replacement Filter, Blueair 311i Max replacement filters
8.9/10Our score
  • Genuine Blueair filter
  • For Blue Pure 311
  • Particle and carbon layers

This genuine Blueair filter is for the Blue Pure 311, not the 311i Max or 311i+ Max. Consider it only if your purifier is the non-i Blue Pure 311.

See it on Amazon

Pros

  • Genuine Blueair filter
  • For the Blue Pure 311

Cons

  • Not for the 311i Max or 311i+ Max

This genuine Blueair filter is for the Blue Pure 311, the non-i model. It is included as a model distinction, not as a replacement choice for the 311i Max or 311i+ Max.

Blueair describes it as a particle and activated carbon filter for the Blue Pure 311. The stated compatibility is limited to that purifier, so the shared β€œ311” wording is not enough to establish a fit for another model.

If your purifier label says Blue Pure 311, this may be relevant. If it says 311i Max or 311i+ Max, select a filter that names that exact model instead.

BLUEAIR Genuine 311 Air Purifier Replacement FilterCheck it on Amazon

How do you choose a Blueair 311i Max filter?

Choose by exact model first, then compare genuine versus compatible options and pack size. The word β€œMax” alone does not confirm a match.

Check whether you have the 311i Max or 311i+ Max

Read the model name on the purifier itself before ordering. The genuine F3MAX and compatible 2-pack options in this roundup name the 311i Max, and each has a stated compatibility limit that excludes the 311i+ Max.

Search terms such as β€œBlueair Blue Pure 311i Max filter” can still show nearby models. Match the full model name and the filter part reference where available.

Decide between genuine and compatible filters

The genuine BLUEAIR F3MAX is the most direct choice when you want a filter made by the purifier brand for the 311i Max. The compatible options here are described for that model and come in two-filter packs.

Compare the stated filter type, fit and pack size. Do not assume that a compatible filter for one 311 series model will fit another.

Follow replacement guidance for your purifier

Replacement timing varies among the options. WILERDA recommends 6 months, and NXBHG recommends 6 to 9 months; Bluearks says to replace as needed based on usage and indoor conditions.

Use your purifier's filter indicator and manual as the main guide. For steps, see our instructions on how to change a Blueair 311i Max filter.

Are Blueair 311i Max and 311i+ Max filters interchangeable?

The options in this roundup do not state compatibility with both models. The genuine Blueair filter and the compatible products explicitly exclude the 311i+ Max, so don't assume that a 311i Max filter will fit a 311i+ Max purifier.

Confirm the complete model name before buying. For another compact Blueair model, compare our guide to best Blueair Mini Max replacement filters.

Which Blueair 311i Max filter should you choose?

Pick the genuine BLUEAIR F3MAX if you want the most direct match for a confirmed Blue Pure 311i Max. Choose one of the compatible two-packs if you want two filters and have checked its exact model exclusions; if your purifier is a 311i+ Max or the non-i 311, find a filter that names that model specifically.

Our top 3 picks at a glance

  1. 1 BLUEAIR Genuine Blue Pure 311i Max Air
    Best for a confirmed 311i Max fit

    BLUEAIR Genuine Blue Pure 311i Max Air

    9.7/10 our score

    See it on Amazon
  2. 2 WILERDA 2 Pack 311i Max Replacement Filter
    Best for keeping a spare on hand

    WILERDA 2 Pack 311i Max Replacement Filter

    9.6/10 our score

    See it on Amazon
  3. 3 Bluearks 2Pcs Blue Pure 311i Max Air
    Best for a two-filter compatible set

    Bluearks 2Pcs Blue Pure 311i Max Air

    9.4/10 our score

    See it on Amazon