Which air filter fits the Ionmax ION450-PREFILTER?

The Ionmax ION450-PREFILTER takes the Ionmax ION450 replacement pre-filters (part ION450-PREFILTER). Compatible filters made to the same specification also fit.

How often should I replace the air filter in my Ionmax ION450-PREFILTER?

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 ION450-PREFILTER in Australia?

We track 1 Australian seller for the ION450-PREFILTER; the lowest listed price when we last checked was A$16.00 at ionmax. Prices are re-checked daily and dated on this page.

How do I fit the ION450-PREFILTER in a Ionmax ION450-PREFILTER?

No tools, a few minutes: 3 steps, listed on this page with the replacement video where the maker has one.

Air purifier air filter · Ionmax

Ionmax ION450 replacement pre-filters

Part codeION450-PREFILTER

Replace every 12 months
Fresh-air filter
Fits 1 model

Sellers from

$16

1 seller compared

Replacement pre-filter sheets for the discontinued Ionmax ION450.

Reduces

Hair, lint and large dust before the main filter

Fits: Ionmax ION450 (discontinued)
Size: 44.5 x 36 x 0.4 cm

Every number this part goes by

Retail name:: ION450 pre-filter

Where to buy

Every seller we track for this part, cheapest first. Genuine is the manufacturer's own part; compatible is a third-party filter made to fit. Prices are re-checked daily where the seller publishes them. Last checked 1 August 2026.

IonmaxGenuine part · Lowest genuine$16checked 1 Aug

How long it lasts

Replace every 12 months.

Flow slows and taste drops off as the filter fills up. Changing on time is the whole point of the filter.

Not due yet?

This filter is due every 12 months. We'll email you when it's time — free, no spam.

Fitting it

A few minutes, no tools. Watch it done, then follow the steps.

We haven't found a clear video for this filter yet. The steps on the right cover it.

1Switch off and unplug.
2Pull the front panel off and peel the old pre-filter sheet off the carbon panel.
3Lay the new sheet on and refit the panel. No reset is needed.

Will it fit your appliance?

Type your model number and we'll check it against our fitment database.

Fits these models

Ionmax1 model

ION450 (pre-filter)

Common questions

Which air filter fits the Ionmax ION450-PREFILTER?: The Ionmax ION450-PREFILTER takes the Ionmax ION450 replacement pre-filters (part ION450-PREFILTER). Compatible filters made to the same specification also fit.
How often should I replace the air filter in my Ionmax ION450-PREFILTER?: 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 ION450-PREFILTER in Australia?: We track 1 Australian seller for the ION450-PREFILTER; the lowest listed price when we last checked was A$16.00 at ionmax. Prices are re-checked daily and dated on this page.
How do I fit the ION450-PREFILTER in a Ionmax ION450-PREFILTER?: No tools, a few minutes: 3 steps, listed on this page with the replacement video where the maker has one.

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