FitMatch
Samsung CFX-B100/GB 2-in-1 Filter (AX40T3020)

Air purifier filter

Samsung CFX-B100/GB 2-in-1 Filter (AX40T3020)

CFX-B100/GB

Fits 1 model · replace every 6 months

Wrong part, or your model missing? Tell us. A person checks every report.

Genuine

$79.00

Samsung · 26 Oct

Compatible

$59.80

Amazon AU · 26 Oct

Check seller

Genuine: made by Samsung. Compatible: another brand. Check certification on the seller's page.

Lowest compatible · $59.80

Amazon AU. Compare with genuine below. Some links earn us a commission.

Open Amazon AU

Compare 3 sellers

AUD, before delivery. Each price shows when it was checked.

Amazon AUCompatible · checked 26 Oct$59.80Open
eBay AUCompatible · checked 26 Oct$85.99Open
SamsungGenuine · checked 26 Oct · out of stock when checked$79.00Open
Open cheapest seller · $59.80

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 6 months. One email two weeks before, no newsletter. Manage or stop it anytime.

Also saves the model to a FitMatch account under this address; the email signs you in, no password.

How to change the CFX-B100/GB filter

Watch the guide or follow the steps.

How to clean and maintain the filters of your Samsung air purifier · Samsung India (official)
  1. 1Switch the purifier off and unplug it.
  2. 2Pull the back cover forward by its left and right edges, then press down the top clip of the pre-filter and lift it off.
  3. 3Take out the old 2-in-1 filter. Samsung suggests wearing gloves.
  4. 4Remove the plastic wrap from the new filter, fit it in the filter frame and refit the pre-filter (bottom first, then the top clip).
  5. 5Hook the back cover into the grooves at the bottom and press its edges into the eight holes. Switch on and hold the filter reset (3 sec) button for 3 seconds until it chimes.
Every number this part goes by
Retail name:
CFX-B100
Retail name:
CFX-B100/GB
Retail name:
CFX-B100GB
Retail name:
Samsung CFX-B100/GB

Sellers list any of these; they are the same part.

Will it fit your appliance?

Type your model number and we'll check it against the makers' lists.

Fits this Samsung model

Samsung1 model

Common questions
What does the CFX-B100/GB fit?
The Samsung CFX-B100/GB 2-in-1 Filter (AX40T3020) fits the Samsung AX40T3020WU/SA. Compatible filters made to the same specification also fit.
How often should I replace the CFX-B100/GB?
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-B100/GB in Australia?
We track 3 Australian sellers for the CFX-B100/GB; the lowest listed price when we last checked was A$59.80 at Amazon AU. Prices are re-checked daily and dated on this page.
How do I fit the CFX-B100/GB?
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?
With the purifier on, hold the filter reset (3 sec) button for 3 seconds until you hear a chime.

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