The Blueair DustMagnet 5440i takes the Blueair DustMagnet ComboFilter 5400 (part 106323) as its filter; replace it every 6 months; Australian sellers list it from A$59.00 as of 21 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your air purifier
Blueair DustMagnet 5440i
Air purifier
Confirmed against Blueair's listConfirmed against Blueair Australia's compatibility list
Not yours? ChangeSave it · remind me every 6 months
Takes the 106323 filter
DustMagnet ComboFilter 5400 · replace every 6 months · check the code printed on your old filter before ordering.
Your air purifier
Air purifier
Confirmed against Blueair's listConfirmed against Blueair Australia's compatibility list
Takes the 106323
Filter · every 6 months · check the code on your old filter.
Other Blueair air purifiers that take the 106323
GenuineGenuine Blueair
$59.00
Blueair Au · 21 OctLowest genuine · Blueair Au · checked 21 Oct
CompatibleCompatible option
See seller
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 · $59.00
Blueair Au. Every seller we track is listed below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 1 seller
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 6 months (Up to 6 months). 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 6 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the filter in your Blueair DustMagnet 5440i
Watch the guide or follow the steps.
- 1Switch the purifier off and unplug it.
- 2Lift each of the two front panels off the DustMagnet.
- 3Lift the old ComboFilter out from behind each panel and fit a new one on each side.
- 4Refit the panels, plug in, and reset the filter timer in the Blueair app or by holding the button.
Every number this part goes by
- Retail name:
- 106323
- Retail name:
- ComboFilter 5400
- Retail name:
- DustMagnet 5400 filter
Sellers list any of these; they are the same part.
About your Blueair DustMagnet 5440i
Blueair air purifier, air purifier — DustMagnet 5400. Its filter is the DustMagnet ComboFilter 5400, part 106323, changed every 6 months.
Where the model number is: The model number is on the rating label on the bottom or back of the purifier; the old filter usually has its own code printed on the frame.
Fits these 2 Blueair models
Blueair2 models
Common questions
- Which filter fits the Blueair DustMagnet 5440i?
- The Blueair DustMagnet 5440i takes the Blueair DustMagnet ComboFilter 5400 (part 106323). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my Blueair DustMagnet 5440i?
- 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 106323 in Australia?
- We track 1 Australian seller for the 106323; the lowest listed price when we last checked was A$59.00 at Blueair Au. Prices are re-checked daily and dated on this page.
- How do I fit the 106323 in a Blueair DustMagnet 5440i?
- 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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