Rank 1 of 4 air purifiers for open-plan spaces in our ranking.in our ranking
Score 7.3 out of 10
Owners’ ratings, 40%: none yet at the shops that deliver to the Netherlands, so this part is left out and the score is the features part alone.
Features, 60%: 7.3, 70 of the 96 points for the maker’s and the registers’ facts.
Price does not count, so a discount never lifts a model. Only air purifiers with a known CADR are ranked.
The highest score today is 8.7.
Is the Blueair Blue Signature Large right for your home? Find out in 7 questions →
Beside it, two models on sale today that come closest to it on score and price, for the same room size where we have them.
Green is the best of these 3, also when they share the lead.
| This model Blueair Blue Signature Large Best on 3 facts | Lower score, 52% dearer Xiaomi Smart Air Purifier Elite | Lower score, 75% dearer Levoit EverestAir-P | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | € 229bol.com best | € 349Xiaomi (brand store) | € 403bol.com |
| Score | best | ||
| Rank | rank 1 of 4 for open-plan spaces | rank 3 of 4 for open-plan spaces | rank 2 of 4 for open-plan spaces |
| Customer rating | – | – | – |
| Room size | |||
| Room size same on all | open-plan spaces | open-plan spaces | open-plan spaces |
| Size, noise and age | |||
| Height lower is better | 43.7 cm best | 73 cm | – |
| On the market since | June 2025 | – | June 2023 |
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.
On 17 October 2026 the lowest price for the Blueair Blue Signature Large is € 229 at bol.com, delivery to the Netherlands included. In our ranking it is rank 1 of 4 for open-plan spaces, with a score of 7.3 out of 10.
All prices include VAT and delivery to the Netherlands. We may earn a commission when you buy through these links. It never changes our ranking.
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The numbers that matter first, then every fact by group. As published by the maker or the shop we read it from.
Blueair · on the market since June 2025
Running cost: Electricity: about € 61 a year. Electricity at CBS, Gemiddelde energietarieven voor consumenten (85592NED), september 2026, on the 235 kWh a year its energy label states.
Consumables: The filter lasts about 12 months.
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.
The test the CADR comes from. AHAM AC-1 and the DOE test are independent and comparable. A maker's own test is not.
The CADR measured with tobacco smoke, the finest of the three test particles. It is the figure to read for wildfire smoke.
The CADR measured with dust.
The CADR measured with pollen.
The CADR measured for particles under 2.5 microns.
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.
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.
A filter of activated carbon that takes out smells and some gases. It does not catch particles.
How long the maker says a filter lasts, in months of normal use. A filter that is spent cleans less.
The sound level at the lowest speed, as the maker measures it.
The sound level at the highest speed, as the maker measures it.
The power the purifier draws at its highest speed.
Air delivered for each watt, the ENERGY STAR measure. Higher is better.
Certified by ENERGY STAR for the energy it uses to clean the air.
The fan speed follows the air quality the sensor reads.
How tall the purifier is. It decides whether it fits on a shelf or under a window sill.
What the purifier weighs. It counts most if you move it from room to room.
An ioniser charges particles so they settle. Some also make a little ozone, which is why a switch to turn it off matters.
Certified by the California Air Resources Board as making little ozone.
The ozone the purifier gives off, in parts per billion. California allows at most 50.
The CADR is verified by AHAM, the US trade body that runs the test.
The warranty the maker gives in the Netherlands. Consumer law here stands apart from it and can last longer.
Sources: data.energystar.gov · blueair.com · ww2.arb.ca.gov · ahamdir.com
Confidence: medium. A CADR the maker states itself, or fewer than 300 owners’ ratings. The highest score today is 8.7.
Owners’ ratings 40%–
Owners’ ratings, 40%: none yet at the shops that deliver to the Netherlands, so this part is left out and the score is the features part alone.
Features 60%7.3
70 of 96 points for the maker’s and the registers’ facts.
The Blueair Blue Signature Large is sized for a room of about 64 m², the room size we compare it on. Its clean air delivery rate (CADR) is 773 m³/h, measured to DOE test.
The maker gives the filter a life of 12 months.
The maker states 23 dB at the lowest speed and 55 dB at the highest.
It uses about 235 kWh a year on the maker’s test assumptions. At the highest speed it draws 42 W.
It is CARB certified, which means it stays under California’s limit of 50 parts per billion of ozone.
The maker
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.
