Blueair (brand store)gray $319
Shippingabout 5–8 days
Returns–
Blueair DustMagnet 5440i
Rank 3 of 13 robots for large rooms in our ranking, tested by .in our ranking, tested by
Score 6.9 out of 10
Lab tests, 60% of the score: no lab has tested it.
Owners’ ratings, 25%: none yet at the stores that ship to the United States, so this part is left out and the others count for more.
Features, 15%: 6.9, 60 of the 87 points for the facts the maker states.
Price does not count, so a discount never lifts a model. Only robots a lab has tested are ranked.
The highest score today is 8.4.
Is the Blueair DustMagnet 5440i right for your home? Find out in 7 questions →
Before you buy, compare it with 2 recommended alternatives
Beside it, two models on sale today that come closest to it on score and price, with the same kind of station where we have them.
Green is the best of these 3, also when they share the lead.
| This model Blueair DustMagnet 5440i | Much better, not pricier Levoit Core 400S-P Best on 2 facts | Lower score, 16% cheaper Coway Airmega Mighty2 | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | $319Blueair (brand store) | $219Levoit (brand store) best | $269Coway (brand store) |
| Score | best | ||
| Rank | rank 3 of 13 for large rooms | rank 1 of 13 for large rooms | rank 4 of 13 for large rooms |
| Customer rating | – | – | – |
| Station | |||
| Room size same on all | large rooms | large rooms | large rooms |
| Size, noise and age | |||
| Height lower is better | 22 in (55.9 cm) | – | – |
| On the market since | May 2025 | June 2023 | March 2026 |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
Prices per store
On October 15, 2026 the lowest price for the Blueair DustMagnet 5440i is $319 at Blueair (brand store), shipping to the United States included. In our ranking it is rank 3 of 13 for large rooms, with a score of 6.9 out of 10.
All prices include shipping to the United States. Sales tax is added at checkout. We may earn a commission when you buy through these links. It never changes our ranking.
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Price history
Lowest price per day
Lowest since Oct 13$319
Highest since Oct 13$319
Price drops since Oct 130no drop seen yet
Blueair DustMagnet 5440i specifications
The numbers that matter first, then every fact by group. As published by the maker or the store we read it from.
Blueair · on the market since May 2025
Clean air delivery rate (CADR)216 cfm
Room size we compare on329 ft²
Noise at the lowest speed31 dB
Filter life6 months
Power at the highest speed42 W
Running cost: Running cost: about $150 a year, $109 for filters and $40 for electricity. Electricity at EIA Short-Term Energy Outlook, October 2026, on the 220 kWh a year its energy label states.
Consumables: The filter lasts about 6 months.
Cleaning performance 9 facts
- Clean air delivery rate (CADR)
How much clean air the purifier delivers an hour, measured with smoke, dust and pollen. A higher figure cleans a bigger room or the same room faster.
- 216 cfm (367 m³/h)
- CADR measured to
The test the CADR comes from. AHAM AC-1 and the DOE test are independent and comparable. A maker's own test is not.
- DOE test
- CADR for smoke
The CADR measured with tobacco smoke, the finest of the three test particles. It is the figure to read for wildfire smoke.
- 216 cfm (367 m³/h)
- CADR for dust
The CADR measured with dust.
- 231 cfm (393 m³/h)
- CADR for pollen
The CADR measured with pollen.
- 274 cfm (466 m³/h)
- CADR for fine particles (PM2.5)
The CADR measured for particles under 2.5 microns.
- 227 cfm (386 m³/h)
- Room size we compare on
The room size where the purifier changes the air 4.8 times an hour under a 2.5 m ceiling, worked out from its CADR. We use it so every model is compared on the same rule.
- 329 ft² (31 m²)
- Room size the maker claims
The room size the maker states. Makers use different rules, so we show it but never rank on it.
- 335 ft² (31 m²)
- Air changes the maker assumes
How many times an hour the maker assumes the air is changed when it states a room size.
- 4.8 per hour
Filter 2 facts
- HEPA filter class
How fine the filter is. True HEPA and H13 catch at least 99.97% of particles at 0.3 microns. HEPA-type is a weaker claim with no test behind it.
- HEPA-type
- Activated carbon filter
A filter of activated carbon that takes out smells and some gases. It does not catch particles.
- yes
Running costs 2 facts
- Filter life
How long the maker says a filter lasts, in months of normal use. A filter that is spent cleans less.
- 6 months
- Energy use a year
- 220 kWh
Noise and power 5 facts
- Noise at the lowest speed
The sound level at the lowest speed, as the maker measures it.
- 31 dB
- Noise at the highest speed
The sound level at the highest speed, as the maker measures it.
- 50 dB
- Power at the highest speed
The power the purifier draws at its highest speed.
- 42 W
- Energy efficiency (IEF)
Air delivered for each watt, the ENERGY STAR measure. Higher is better.
- 5.9 cfm/W
- ENERGY STAR certified
Certified by ENERGY STAR for the energy it uses to clean the air.
- yes
Air quality sensing 1 fact
- Automatic mode
The fan speed follows the air quality the sensor reads.
- yes
Smart features and warranty 1 fact
- App control
- Wi-Fi
Build 4 facts
- Height
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
- 22 in (55.9 cm)
- Width
- 304.8 mm
- Depth
- 304.8 mm
- Weight
What the robot weighs. It counts most if you carry it up a staircase every day.
- 15 lb (6.8 kg)
Extras 2 facts
- Ioniser
An ioniser charges particles so they settle. Some also make a little ozone, which is why a switch to turn it off matters.
- None
- Ozone produced
The ozone the purifier gives off, in parts per billion. California allows at most 50.
- 1 ppb
Warranty and certification 1 fact
- AHAM Verifide certified
The CADR is verified by AHAM, the US trade body that runs the test.
- yes
Sources: data.energystar.gov · blueair.com · ahamdir.com
Our score
Confidence: medium. One lab and fewer than 300 owners’ ratings. The highest score today is 8.4.
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Lab tests 60%–
Left out, so the other parts count for more.
-
Owners’ ratings 25%–
Owners’ ratings, 25%: none yet at the stores that ship to the United States, so this part is left out and the others count for more.
-
Features 15%6.9
60 of 87 points for the facts the maker states.
- Price never countsA sale can’t lift a model. Today’s lowest price sits beside the score, checked every morning.
- No test, no rankOnly robots a lab has tested are ranked. The rest get a provisional score.
- Reviewers beside, not insideReviewers’ picks are shown next to the score and do not count in it.
Frequently asked questions about the Blueair DustMagnet 5440i
What size of room is the Blueair DustMagnet 5440i for?
The Blueair DustMagnet 5440i is sized for a room of about 329 ft², the room size we compare it on. Its clean air delivery rate (CADR) is 216 cfm, measured to DOE test.
How often does the Blueair DustMagnet 5440i need a new filter?
The maker gives the filter a life of 6 months.
How loud is the Blueair DustMagnet 5440i?
The maker states 31 dB at the lowest speed and 50 dB at the highest.
How much power does the Blueair DustMagnet 5440i use?
It uses about 220 kWh a year on the maker’s test assumptions. At the highest speed it draws 42 W.
Is the Blueair DustMagnet 5440i good for wildfire smoke?
Its CADR for smoke is 216 cfm. A higher number clears smoke from a room faster, so compare it with the size of your room.
The maker
Blueair
- Owned by Unilever
Blueair was founded in 1996 in Stockholm, Sweden, and was acquired by Unilever in 2016. It sells air purifiers and filters to American buyers through its own online store. Its US privacy notice names Blueair, Inc as the company behind the store, with an address in Chicago.
