The Xiaomi Mi Air Purifier Pro takes the Mi Air Purifier HEPA Filter M8R-FLH (2, 2S, 2H, 2C, 3H, 3C, Pro) as its filter; replace it every 6 months; Australian sellers list it from A$39.00 as of 26 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your air purifier
Xiaomi Mi Air Purifier Pro
Air purifier
Confirmed against Xiaomi's listConfirmed against Xiaomi's own compatibility list
Not yours? ChangeSave it · remind me every 6 months
Takes the M8R-FLH filter
Mi Air Purifier HEPA Filter M8R-FLH (2, 2S, 2H, 2C, 3H, 3C, Pro) · replace every 6 months · check the code printed on your old filter before ordering.
Your air purifier
Air purifier
Confirmed against Xiaomi's listConfirmed against Xiaomi's own compatibility list
Takes the M8R-FLH
Filter · every 6 months · check the code on your old filter.
Other Xiaomi air purifiers that take the M8R-FLH
GenuineGenuine Xiaomi
$75.00
Amazon AU · 26 OctLowest genuine · Amazon AU · checked 26 Oct
CompatibleCompatible option
$39.00
Bunnings · 26 OctBunnings · checked 26 Oct
Check sellerCheck seller details
Genuine: made by Xiaomi. Compatible: another brand. Check certification on the seller's page.Genuine is made by Xiaomi. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest compatibleLowest compatible price · $39.00
Bunnings. Compare with genuine below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 3 listings from 2 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
2 sellers
Opens Bunnings 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 Xiaomi Mi Air Purifier Pro
Watch the guide or follow the steps.
- 1Switch the purifier off and unplug it.
- 2Press the buckle on the filter compartment cover at the back and open it.
- 3Unlock and lift out the old filter. Cut open the new filter's bag and fit it the same way, then close the cover.
- 4Plug in and switch on. The Mi Air Purifier 3H reads a genuine filter and shows its remaining life; on models that need a manual reset, hold the button on the back for 6 seconds until it beeps.
Every number this part goes by
- Retail name:
- M8R-FLH
- Retail name:
- Mi Air Purifier 2H filter
- Retail name:
- Mi Air Purifier 3H filter
- Retail name:
- Mi Air Purifier Filter
- Retail name:
- Mi Air Purifier HEPA Filter
- Retail name:
- SCG4021GL
- Retail name:
- Xiaomi HEPA filter
Sellers list any of these; they are the same part.
About your Xiaomi Mi Air Purifier Pro
Xiaomi air purifier — Mi Air Purifier 2/3. Its filter is the Mi Air Purifier HEPA Filter M8R-FLH (2, 2S, 2H, 2C, 3H, 3C, Pro), part M8R-FLH, 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 7 Xiaomi models
Common questions
- Which filter fits the Xiaomi Mi Air Purifier Pro?
- The Xiaomi Mi Air Purifier Pro takes the Mi Air Purifier HEPA Filter M8R-FLH (2, 2S, 2H, 2C, 3H, 3C, Pro). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my Xiaomi Mi Air Purifier Pro?
- Every 6 months. It works less well as the filter fills up, so it's worth doing on time.
- Where can I buy the M8R-FLH in Australia?
- We track 2 Australian sellers for the M8R-FLH; the lowest listed price when we last checked was A$39.00 at Bunnings. Prices are re-checked daily and dated on this page.
- How do I fit the M8R-FLH in a Xiaomi Mi Air Purifier Pro?
- No tools, a few minutes: 4 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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