# Blueair Blue Max 3250i Smart WiFi Air Purifier, HEPASilent, Quiet Mark

Source: https://www.ranked10.co.uk/home/best-air-purifier/blueair-blue-max-3250i-air-purifier
Ranked #5 in "Best Air Purifier 2026: 10 Ranked on Real Air Changes": https://www.ranked10.co.uk/home/best-air-purifier

- Price: £129.00 (checked on Amazon UK on 2026-09-10)
- Amazon rating: 4.4 from 369 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B08KPHK3NG?tag=ranked10-21

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.

## Specification

| Field | Value |
|---|---|
| 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 |

## 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.