The Ionmax ION390 takes the Ionmax ION390 3-in-1 replacement filter (part ION390-F) as its filter; replace it every 12 months; Australian sellers list it from A$27.00 as of 21 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your air purifier
Ionmax ION390
Air purifier
Confirmed against Ionmax's listConfirmed against Ionmax Australia's compatibility list
Not yours? ChangeSave it · remind me every 12 months
Takes the ION390-F filter
ION390 3-in-1 replacement filter · replace every 12 months · check the code printed on your old filter before ordering.
Your air purifier
Air purifier
Confirmed against Ionmax's listConfirmed against Ionmax Australia's compatibility list
Takes the ION390-F
Filter · every 12 months · check the code on your old filter.
Other Ionmax air purifiers and their filters
The ION390-F fits the ION390 only. These Ionmax models take a different filter:
GenuineGenuine Ionmax
$27.00
Ionmax · 21 OctLowest genuine · Ionmax · checked 21 Oct
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by Ionmax. Compatible: another brand. Check certification on the seller's page.Genuine is made by Ionmax. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest price · $27.00
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AUD, before delivery. Each price shows when it was checked.
Opens Ionmax in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Usually every 12 months.
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 filter in your Ionmax ION390
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.
- 2Pull the front panel off from the bottom edge.
- 3Lift the old 3-in-1 filter out, unwrap the new one and fit it the same way round, carbon side out.
- 4Refit the panel, plug in, and hold the filter button until the indicator clears.
Every number this part goes by
- Retail name:
- ION390 filter
- Retail name:
- ION390-F
- Retail name:
- ION390F
Sellers list any of these; they are the same part.
About your Ionmax ION390
Ionmax air purifier, air purifier — ION390 (discontinued). Its filter is the ION390 3-in-1 replacement filter, part ION390-F, changed 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 Ionmax model
Ionmax1 model
Common questions
- Which filter fits the Ionmax ION390?
- The Ionmax ION390 takes the Ionmax ION390 3-in-1 replacement filter (part ION390-F). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my Ionmax ION390?
- 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 ION390-F in Australia?
- We track 1 Australian seller for the ION390-F; the lowest listed price when we last checked was A$27.00 at Ionmax. Prices are re-checked daily and dated on this page.
- How do I fit the ION390-F in a Ionmax ION390?
- 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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