The Blueair Blue Pure 311i Max takes the Blueair F3MAX Particle + Carbon filter (Blue Pure 311i Max) as its filter; replace it every 6 months. Fitment confirmed against the manufacturer's compatibility list.

Your air purifier
Blueair Blue Pure 311i Max
Air purifier
Confirmed against Blueair's listConfirmed against Blueair Australia's compatibility list
Not yours? ChangeSave it · remind me every 6 months
Takes the F3MAX filter
F3MAX Particle + Carbon filter (Blue Pure 311i Max) · 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 F3MAX
Filter · every 6 months · check the code on your old filter.
Other Blueair air purifiers and their filters
The F3MAX fits the Blue Pure 311i Max only. These Blueair models take a different filter:
GenuineGenuine Blueair
See seller
Sold by Blueair and retailersSold by Blueair and retailers
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.
This air purifier also takes a pre-filter
- Blueair fabric pre-filter (Blue Pure 311i Max)Open Amazon AU$29.17
Separate from the filter. Reduces hair, lint and large dust before the main filter. Replace every 12 months.
Compare 2 sellers
Sellers
AUD, before delivery. Each price shows when it was checked.
No Australian seller lists this part right now. Blueair has taken it off its Australian store (2026-09-28) and no Australian seller was found. Search the part code F3MAX at your usual retailer.
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.
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 Blue Pure 311i Max
Watch the guide or follow the steps.
- 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 by
- Retail name:
- 110411
- Retail name:
- 311i Max filter
- Retail name:
- 3350i filter
- Retail name:
- F3 Max
- Retail name:
- F3MAX
Sellers list any of these; they are the same part.
About your Blueair Blue Pure 311i Max

Blueair air purifier, air purifier — Blue Pure Max. Its filter is the F3MAX Particle + Carbon filter (Blue Pure 311i Max), part F3MAX, changed every 6 months.
Also in this air purifier: Blueair AllergenBlock filter (Blue Pure 311i Max) (every 6 months), Blueair SmokeBlock filter (Blue Pure 311i Max) (every 6 months), Blueair fabric pre-filter (Blue Pure 311i Max) (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 311i Max?
- The Blueair Blue Pure 311i Max takes the Blueair F3MAX Particle + Carbon filter (Blue Pure 311i Max) (part F3MAX). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my Blueair Blue Pure 311i Max?
- Every 6 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
- How do I fit the F3MAX in a Blueair Blue Pure 311i Max?
- 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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