How do I fit the 111237 in a Blueair 111237?

No tools, a few minutes: 4 steps, listed on this page with the replacement video where the maker has one.

What happens if I don't change it?

The fan works harder for less airflow, and the carbon layer stops taking smells out well before the filter looks dirty.

Air purifier filter

Blueair SmokeBlock filter (Blue Pure 411i Max / 411a Max)

111237

Fits 2 models · replace every 6 months

Wrong part, or your model missing? Tell us. A person checks every report.

GenuineGenuine Blueair

$128.69

Amazon AU · 5 OctLowest genuine · Amazon AU · checked 5 Oct

CompatibleCompatible option

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No compatible seller tracked yetNo compatible seller tracked yet

Genuine: made by Blueair. Compatible: another brand. Check certification on the seller's page.Genuine is made by Blueair. Compatible is made by another brand. Check the seller's certification details before choosing.

Lowest price · $128.69

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Open Amazon AU · $128.69

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AUD, before delivery. Each price shows when it was checked.

Genuine Blueair

1 seller

Amazon AUGenuine · checked 5 Oct · may have changedGenuine part · Lowest genuinechecked 5 Oct · may have changed$128.69OpenGo to seller

Open cheapest seller · $128.69

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How long it lasts

Usually every 6 months (6–9 months on RealTrack (app tracks actual use)). The app reminds you when it is due.

Flow slows and taste drops off as the filter fills up. Changing on time is the whole point.

Not due yet?

Get a nudge when your filter is due — it's every 6 months. One email two weeks before, no newsletter. Manage or stop it anytime.

How to change the 111237 filter

Watch the guide or follow the steps.

No clear video for this part yet. The steps cover it.

1Switch the purifier off and unplug it.
2Hold the base, twist the top section a little anti-clockwise and lift it off.
3Lift the old cylindrical filter out of the base and drop the new one in, pull tab up. Take the plastic wrap off first.
4Refit the top, plug in, and hold the button until the filter light goes out (or reset it in the Blueair app).

Every number this part goes by111237 · 411i Max SmokeBlock

Retail name:: 111237
Retail name:: 411i Max SmokeBlock

Sellers list any of these; they are the same part.

Will it fit your appliance?

Type your model number and we'll check it against the makers' lists.

Your appliance model

Fits these 2 Blueair modelsBlue Pure 411a Max, Blue Pure 411i Max

Blueair2 models

Alternative to F4MAX in the same slot.

Common questionsWhich filter fits the Blueair 111237? · How often should I replace the filter in my Blueair 111237? · Where can I buy the 111237 in Australia?

Which filter fits the Blueair 111237?: The Blueair 111237 takes the Blueair SmokeBlock filter (Blue Pure 411i Max / 411a Max) (part 111237). Compatible filters made to the same specification also fit.
How often should I replace the filter in my Blueair 111237?: Every 6 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
Where can I buy the 111237 in Australia?: We track 1 Australian seller for the 111237; the lowest listed price when we last checked was A$128.69 at Amazon AU. Prices are re-checked daily and dated on this page.
How do I fit the 111237 in a Blueair 111237?: No tools, a few minutes: 4 steps, listed on this page with the replacement video where the maker has one.
What happens if I don't change it?: The fan works harder for less airflow, and the carbon layer stops taking smells out well before the filter looks dirty.

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