The Blueair Blue Pure 311 Auto takes the Blueair Particle + Carbon filter (Blue Pure 311 Auto) (part F311PACF105618) as its filter; replace it every 6 months; Australian sellers list it from A$79.00 as of 5 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your air purifier
Blueair Blue Pure 311 Auto
Air purifier
Confirmed against Blueair's listConfirmed against Blueair Australia's compatibility list
Not yours? ChangeSave it · remind me every 6 months
Takes the F311PACF105618 filter
Particle + Carbon filter (Blue Pure 311 Auto) · 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 F311PACF105618
Filter · every 6 months · check the code on your old filter.
Other Blueair air purifiers and their filters
The F311PACF105618 fits the Blue Pure 311 Auto only. These Blueair models take a different filter:
GenuineGenuine Blueair
$79.00
Harvey Norman · 5 OctLowest genuine · Harvey Norman · checked 5 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 · $79.00
Harvey Norman. 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.
This air purifier also takes a pre-filter
- Blueair fabric pre-filter (Blue Pure 311 Auto)Open Amazon AU$29.17
Separate from the filter. Reduces hair, lint and large dust before the main filter. Replace every 12 months.
Compare 6 sellers
AUD, before delivery. Each price shows when it was checked.
Genuine Blueair
6 sellers
Opens Harvey Norman in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Usually every 6 months. The filter light is a reminder, not a water-quality sensor.
After replacing: Press and hold the button until the filter light goes out (about 5 seconds).
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 Blue Pure 311 Auto
Watch the guide or follow the steps.
- 1Switch the purifier off and unplug it.
- 2Lift the top section straight up off the base.
- 3Lift the old cylindrical filter out, unwrap the new one and drop it in.
- 4Refit the top, plug in, and hold the button until the filter light goes out.
Every number this part goes by
- Retail name:
- 105618
- Retail name:
- 311 Auto filter
- Retail name:
- 3410 filter
- Retail name:
- F311PACF105618
Sellers list any of these; they are the same part.
About your Blueair Blue Pure 311 Auto
Blueair air purifier, air purifier — Blue Pure Auto. Its filter is the Particle + Carbon filter (Blue Pure 311 Auto), part F311PACF105618, changed every 6 months.
Also in this air purifier: Blueair AllergenBlock filter (Blue Pure 311 Auto) (every 6 months), Blueair SmokeBlock filter (Blue Pure 311 Auto) (every 6 months), Blueair fabric pre-filter (Blue Pure 311 Auto) (every 12 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 1 Blueair model
Blueair1 model
Common questions
- Which filter fits the Blueair Blue Pure 311 Auto?
- The Blueair Blue Pure 311 Auto takes the Blueair Particle + Carbon filter (Blue Pure 311 Auto) (part F311PACF105618). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my Blueair Blue Pure 311 Auto?
- 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 F311PACF105618 in Australia?
- We track 6 Australian sellers for the F311PACF105618; the lowest listed price when we last checked was A$79.00 at Harvey Norman. Prices are re-checked daily and dated on this page.
- How do I fit the F311PACF105618 in a Blueair Blue Pure 311 Auto?
- 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?
- Press and hold the button until the filter light goes out (about 5 seconds).
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