The Samsung AX40T3030WM/SA takes the Samsung CFX-G100/GB 2-in-1 Filter (AX34T3020, AX40T3030) as its filter; replace it every 6 months; Australian sellers list it from A$41.50 each as of 26 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your air purifier
Samsung AX40T3030WM/SA
Air purifier
Confirmed against Samsung's listConfirmed against Samsung's own compatibility list
Not yours? ChangeSave it · remind me every 6 months
Takes the CFX-G100/GB filter
CFX-G100/GB 2-in-1 Filter (AX34T3020, AX40T3030) · replace every 6 months · check the code printed on your old filter before ordering.
Your air purifier
Air purifier
Confirmed against Samsung's listConfirmed against Samsung's own compatibility list
Takes the CFX-G100/GB
Filter · every 6 months · check the code on your old filter.
Other Samsung air purifiers that take the CFX-G100/GB
GenuineGenuine Samsung
$97.00
The Good Guys · 7 NovLowest genuine · The Good Guys · checked 7 Nov
CompatibleCompatible option
$41.50 each
2-pack $83.00
eBay AU · 26 OcteBay AU · checked 26 Oct
Check sellerCheck seller details
Genuine: made by Samsung. Compatible: another brand. Check certification on the seller's page.Genuine is made by Samsung. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest compatibleLowest compatible price · $41.50 each · 2-pack $83.00
eBay 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 7 listings from 6 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
3 listings from 2 sellers
Opens eBay 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 6 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the filter in your Samsung AX40T3030WM/SA
Watch the guide or follow the steps.
- 1Switch off and unplug. Press the top of the purifier with your thumbs and pull the front cover toward you.
- 2Take out the pre-filter, then lift out the old 2-in-1 filter.
- 3Remove the plastic wrap from the new 2-in-1 filter and sit it in the grooves at the bottom.
- 4Refit the pre-filter, then the front cover: hooks into the grooves at the bottom first, then push it shut.
- 5Plug in and hold the sleep mode / filter reset button for more than 3 seconds.
Every number this part goes by
- Retail name:
- CFX-G100
- Retail name:
- CFX-G100/GB
- Retail name:
- CFX-G100GB
- Retail name:
- Samsung CFX-G100/GB
Sellers list any of these; they are the same part.
About your Samsung AX40T3030WM/SA
Samsung air purifier — AX40 Light. Its filter is the CFX-G100/GB 2-in-1 Filter (AX34T3020, AX40T3030), part CFX-G100/GB, changed every 6 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 2 Samsung models
Samsung2 models
Common questions
- Which filter fits the Samsung AX40T3030WM/SA?
- The Samsung AX40T3030WM/SA takes the Samsung CFX-G100/GB 2-in-1 Filter (AX34T3020, AX40T3030). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my Samsung AX40T3030WM/SA?
- Every 6 months. It works less well as the filter fills up, so it's worth doing on time.
- Where can I buy the CFX-G100/GB in Australia?
- We track 6 Australian sellers for the CFX-G100/GB; the lowest listed price when we last checked was A$41.50 at eBay AU. Prices are re-checked daily and dated on this page.
- How do I fit the CFX-G100/GB in a Samsung AX40T3030WM/SA?
- 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 reminder?
- After fitting the new filter, hold the sleep mode / filter reset button for more than 3 seconds.
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