The Coway Airmega 50 takes the Coway Airmega 50 Filter (3-in-1) (part 3120954) as its filter; replace it every 8 months; Australian sellers list it from A$19.95 each as of 26 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your air purifier
Coway Airmega 50
Air purifier
Confirmed against Coway's listConfirmed against Coway's own compatibility list
Not yours? ChangeSave it · remind me every 8 months
Takes the 3120954 filter
Airmega 50 Filter (3-in-1) · replace every 8 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 3120954
Filter · every 8 months · check the code on your old filter.
Other Coway air purifiers and their filters
The 3120954 fits the Airmega 50 only. These Coway models take a different filter:
GenuineGenuine Coway
$39.00
Amazon AU · 26 OctLowest genuine · Amazon AU · checked 26 Oct
CompatibleCompatible option
$19.95 each
2-pack $39.90
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 · $19.95 each · 2-pack $39.90
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 6 listings from 3 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
2 listings from 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 8 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the filter in your Coway Airmega 50
Watch the guide or follow the steps.
- 1Switch the purifier off, unplug it and turn it upside down.
- 2Hold the handle on the base cover and turn it anticlockwise to open it (clockwise closes it).
- 3Lift out the old filter. Take the new filter out of its plastic wrap and drop it in.
- 4Refit the cover, turn it clockwise to lock, stand the purifier up and plug it in.
- 5When the filter light is on, hold the filter button for 3 seconds to clear it.
Every number this part goes by
- Retail name:
- 3120954
- Retail name:
- 8809825509406
- Retail name:
- Airmega 50 filter
- Retail name:
- Airmega 50 filter set
- Retail name:
- Airmega AP-0425C-FP
- Retail name:
- AP-0425C-FP
- Retail name:
- Coway 50 filter
Sellers list any of these; they are the same part.
About your Coway Airmega 50
Coway air purifier — Airmega 50. Its filter is the Airmega 50 Filter (3-in-1), part 3120954, changed every 8 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 50?
- The Coway Airmega 50 takes the Coway Airmega 50 Filter (3-in-1) (part 3120954). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my Coway Airmega 50?
- Every 8 months. It works less well as the filter fills up, so it's worth doing on time.
- Where can I buy the 3120954 in Australia?
- We track 3 Australian sellers for the 3120954; the lowest listed price when we last checked was A$19.95 at Amazon AU. Prices are re-checked daily and dated on this page.
- How do I fit the 3120954 in a Coway Airmega 50?
- 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.
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