The Coway Airmega 400 takes the Coway Airmega 400 / 400S Max2 Filter Set (2 filters) (part 3111595) as its filter; replace it every 12 months; Australian sellers list it from A$107.06 as of 26 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your air purifier
Coway Airmega 400
Air purifier
Confirmed against Coway's listConfirmed against Coway's own compatibility list
Not yours? ChangeSave it · remind me every 12 months
Takes the 3111595 filter
Airmega 400 / 400S Max2 Filter Set (2 filters) · replace every 12 months · check the code printed on your old filter before ordering.
Your air purifier
Air purifier
Confirmed against Coway's listConfirmed against Coway's own compatibility list
Takes the 3111595
Filter · every 12 months · check the code on your old filter.
Other Coway air purifiers and their filters
The 3111595 fits the Airmega 400 only. These Coway models take a different filter:
GenuineGenuine Coway
$169.00
Amazon AU · 26 OctLowest genuine · Amazon AU · checked 26 Oct
CompatibleCompatible option
$107.06
Amazon AU · 26 OctAmazon AU · checked 26 Oct
Check sellerCheck seller details
Genuine: made by Coway. Compatible: another brand. Check certification on the seller's page.Genuine is made by Coway. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest compatibleLowest compatible price · $107.06
Amazon AU. Compare with genuine below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 5 listings from 3 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
1 seller
Genuine Coway
4 listings from 3 sellers
Opens Amazon AU in a new tab. Their page is the source of truth for price, delivery and returns.
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 Coway Airmega 400
Watch the guide or follow the steps.
- 1Unplug the purifier. There is a filter set behind each side cover: pull the top of each side cover to open it.
- 2On both sides, take out the cover, then the pre-filter, then the old Max2 filter.
- 3Take the new Max2 filters out of their plastic and fit one on each side, green side facing the purifier.
- 4Refit the pre-filters and both covers. The purifier will not start if either cover is not fitted properly.
- 5Plug in, switch on and touch and hold the Max2 Change button to reset the filter light.
Every number this part goes by
- Retail name:
- 3111595
- Retail name:
- 3111735
- Retail name:
- 8809825507570
- Retail name:
- Airmega 400 filter
- Retail name:
- Airmega 400 Max2 filter
- Retail name:
- Airmega 400S filter
- Retail name:
- AP-2015-FP
- Retail name:
- AP-2015E/F Filter Set
- Retail name:
- Max2Green filter 400
Sellers list any of these; they are the same part.
About your Coway Airmega 400
Coway air purifier — Airmega 400. Its filter is the Airmega 400 / 400S Max2 Filter Set (2 filters), part 3111595, 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 this Coway model
Coway1 model
Common questions
- Which filter fits the Coway Airmega 400?
- The Coway Airmega 400 takes the Coway Airmega 400 / 400S Max2 Filter Set (2 filters) (part 3111595). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my Coway Airmega 400?
- Every 12 months. It works less well as the filter fills up, so it's worth doing on time.
- Where can I buy the 3111595 in Australia?
- We track 3 Australian sellers for the 3111595; the lowest listed price when we last checked was A$107.06 at Amazon AU. Prices are re-checked daily and dated on this page.
- How do I fit the 3111595 in a Coway Airmega 400?
- No tools, a few minutes: 5 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?
- Touch and hold the Max2 Change button on the control panel to reset the filter light.
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