Blueair Protect 7740i filter
The Blueair Protect 7740i takes the Blueair Protect 7700 series SmartFilter (part 106157) as its filter; replace it every 6 months; Australian sellers list it from A$119.99 as of 1 August 2026. This fit is listed by sellers and not yet confirmed against the manufacturer's list.
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Your air purifier
Blueair Protect 7740i
Air purifier · Protect 7700
Takes this filter
Protect 7700 series SmartFilter
106157
Listed by sellers as compatible, not yet confirmed against the manufacturer's list — check the code on your old filter.
The right filter for Protect 7740i
Blueair Protect 7700 series SmartFilter
- Replace every 6 months
- Fits inside the fridge
- Fits 2 models
The SmartFilter for Blueair Protect / HealthProtect 7700 series purifiers (7710i, 7740i). RFID-tagged; the purifier recognises a new filter.
Reduces
- Fine dust, pollen and allergens
- Odours, smoke and gases (activated carbon)
- Bacteria and viruses (GermShield)
- Fits
- Protect 7700 series
- Lasts
- App-tracked; about 6 months
Every number this part goes by
- Retail name:
- HealthProtect 7700 filter
- Retail name:
- SmartFilter 7700
Where to buy
Every seller we track for this part, cheapest first. Genuine is the manufacturer's own part; compatible is a third-party filter made to fit. Prices are re-checked daily where the seller publishes them. Last checked 1 August 2026.
How long it lasts
Replace every 6 months — the app reminds you.
Flow slows and taste drops off as the filter fills up. Changing on time is the whole point of the filter.
Not due yet?
This filter is due every 6 months. We'll email you when it's time — free, no spam.
Fitting it
A few minutes, no tools. Watch it done, then follow the steps.
- 1Switch the purifier off and unplug it.
- 2Pull the front cover off from the bottom edge.
- 3Lift the old SmartFilter drum out and stand the new one in its place.
- 4Refit the cover and plug in; the purifier reads the new filter's tag and resets itself.
About your Blueair Protect 7740i
Blueair air purifier, air purifier — Protect 7700. Its filter is the Protect 7700 series SmartFilter, part 106157, changed every 6 months.
Checking the model number: 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 models
Blueair2 models
Common questions
- Which filter fits the Blueair Protect 7740i?
- The Blueair Protect 7740i takes the Blueair Protect 7700 series SmartFilter (part 106157). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my Blueair Protect 7740i?
- Every 6 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
- Where can I buy the 106157 in Australia?
- We track 1 Australian seller for the 106157; the lowest listed price when we last checked was A$119.99 at blueair-au. Prices are re-checked daily and dated on this page.
- How do I fit the 106157 in a Blueair Protect 7740i?
- No tools, a few minutes: 4 steps, listed on this page with the replacement video where the maker has one.
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