Rank #5 in Best Air Purifier 2026: 10 Ranked on Real Air Changes
Blueair Blue Max 3250i Smart WiFi Air Purifier, HEPASilent, Quiet Mark
- Rating
- 4.4
- Ratings
- 369
- Rank
- #5
Price and rating as shown on Amazon when we collected them. Both change.
The Blue Max 3250i is the quietest claim of the smart purifiers here in one sense and the noisiest in another, which is why the listing deserves reading carefully: it describes HEPASilent dual filtration covering up to 48 square metres, smart connectivity and control through the app, a 0.1 micrometre retention size and 3.39 kilograms of weight, but the noise figure is given as 46 decibels against the 20 to 27 decibels quoted elsewhere in this ranking.
HEPASilent combines electrostatic and mechanical filtration, which is Blueair's long-standing approach and generally allows good airflow at lower fan settings. At the time of collection it carried 369 ratings at 4.4 stars. Everything here comes from the Amazon listing rather than our own testing.
How those 369 ratings break down
An average hides its own shape. This is the spread behind the 4.4 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Power Source | Corded Electric |
|---|---|
| Control Method | App |
| Filter Type | HEPA |
| Floor Area | 48 Square Meters |
| Noise Level | 46 Decibels |
| Particle Retention Size | 0.1 Micron |
| Controller Type | mobile app |
| Contaminant Filtration Capability | Yes |
| Special Features | HEPASilent dual filtration technology, Smart connectivity and control |
| Filter Class | HEPA |
| Item Dimensions D x W x H | 26.9D x 26.9W x 48.1H centimetres |
| Item Weight | 3.39 kg |
| Specification Met | Certified HEPA |
| Brand Name | BLUEAIR |
| Model Number | 110085 |
| UPC | 689122023601 |
| Number of Packs | 1 |
| Unit Count | 1.0 count |
| Manufacturer | BLUEAIR |
| Country of Origin | China |
What it is up against
The rivals it was ranked against in Best Air Purifier 2026: 10 Ranked on Real Air Changes.
Rank #1
Winix 5500-2 Air Purifier, CADR 390 m3/h, 4-Stage Filtration, PlasmaWave
£159.00
Rank #2
Levoit Core 300S Smart HEPA Air Purifier, CADR 258 m3/h, PM2.5 Sensor
£149.99
Rank #3
Bosch Air 4000 Air Purifier, CADR 300 m3/h, 3-in-1 Filter, 62.5 m2
£189.99
Rank #4
Coway Airmega Jet HEPA Air Purifier, CADR 402 m3/h, Allergy UK Approved
£279.99
Questions people ask
What filtration technology is named?
HEPASilent dual filtration.
What room size does it cover?
Up to 48 square metres, as listed.
What is the listed noise level?
46 decibels.
How is it controlled?
Through the mobile app, as listed.
How many ratings does it have?
369 at the time of collection, averaging 4.4 stars.
Comments
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