Air purifier filter
Blueair Blue Signature replacement filter
112977
Fits 1 model · replace every 12 months
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GenuineGenuine Blueair
$99.00
Blueair Au · 21 OctLowest genuine · Blueair Au · checked 21 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 · $99.00
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AUD, before delivery. Each price shows when it was checked.
Opens Blueair Au in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Usually every 12 months (Blueair quotes double the filter life of Blue Pure Max (app tracks actual use)). The app reminds you when it is due.
After replacing: Hold the button on the top of the purifier until the filter light goes out, or clear it in the Blueair app.
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 12 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the 112977 filter
Watch the guide or follow the steps.
- 1Switch the purifier off and unplug it.
- 2Lift the top off the Blue Signature as shown in Blueair's tutorial and lift the old filter out.
- 3Unwrap the new filter and drop it in, then refit the top.
- 4Plug in and reset the filter timer in the Blueair app.
Every number this part goes by
- Retail name:
- 112977
- Retail name:
- Blue Signature filter
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.
Fits these 1 Blueair model
Blueair1 model
Common questions
- Which filter fits the Blueair 112977?
- The Blueair 112977 takes the Blueair Blue Signature replacement filter (part 112977). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my Blueair 112977?
- Every 12 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
- Where can I buy the 112977 in Australia?
- We track 1 Australian seller for the 112977; the lowest listed price when we last checked was A$99.00 at Blueair Au. Prices are re-checked daily and dated on this page.
- How do I fit the 112977 in a Blueair 112977?
- 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.
- How do I reset the filter light?
- Hold the button on the top of the purifier until the filter light goes out, or clear it in the Blueair app.
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