# BLUEAIR Blue Pure 511i Max Air Purifier

The BLUEAIR Blue Pure 511i Max is a compact air purifier for bedrooms, nurseries, home offices, and other small rooms. The listing claims app control, automatic fan adjustment from built-in air-quality sensors, and coverage up to 1,138 sq ft in one hour.

- [Original product page](https://best-deals.pro/product/blueair-blue-pure-511i-max-air-purifier)
- [View offer](https://best-deals.pro/visit/blueair-blue-pure-511i-max-air-purifier)
- Market: US
- Language: en-US
- Currency: USD
- Brand: BLUEAIR
- Category: Home & Kitchen > Heating, Cooling & Air Quality > Air Purifiers
- Price: 89.99 USD
- Previous price: 139.99 USD
- Discount: 36%
- Price checked: 2026-11-11T11:56:59.399Z
- Rating: 4.5 / 5
- Reviews: 2128

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- App control includes air-quality monitoring, setting adjustments, and filter replacement reminders.
- Built-in sensors are claimed to raise fan speed automatically when pollution levels rise.
- The listing describes sleep-friendly operation as quiet as 19 dB.

## Pros

- App monitoring and automatic fan adjustment offer alternatives to manual-only control.
- The claimed 360° air intake and compact design suit placement in smaller rooms.

## Specifications

### Coverage and cleaning
- Claimed room coverage: up to 1,138 sq ft in one hour
- Claimed small-room cleaning time: 237 csq ft in about 12.5 minutes
### Filtration and sound
- Filtration technology: HEPASilent dual filtration technology
- Particle capture claim: 99.97% of airborne particles down to 0.1 microns
- Operating noise claim: as quietly as 19 dB
### Controls and design
- Air-quality sensing: Built-in air quality sensors automatically adjust fan speed when pollution levels rise.
- App functions: monitor air quality, control settings, and receive filter replacement reminders
- Air intake: 360° air intake

## Before you buy

- Coverage, cleaning-time, particle-capture and noise figures are manufacturer claims, not independently verified here, the listing's 1,138 sq ft figure is framed as one-hour coverage, while its faster-cleaning claim applies to 237 csq ft.

## A good fit for

- Bedroom, nursery, dorm-room, or home-office buyers looking for app control and automatic fan adjustment.
- People seeking a compact purifier with claimed coverage stated for both a small room and a larger area over one hour.

## Customer feedback

The supplied evidence includes an aggregate rating of 4.5 out of 5 stars but no review count or qualitative customer comments. That rating alone does not establish what buyers liked or disliked, or how the purifier performs in a particular room.

## Frequently asked questions

### What room size does the listing claim it can cover?
It claims coverage up to 1,138 sq ft in one hour and says it cleans 237 csq ft in about 12.5 minutes. These are manufacturer claims.
### Can it be controlled from a phone?
Yes. The listing says the Blueair app can monitor air quality, control settings, and provide filter replacement reminders.
### Does the purifier adjust itself?
The listing says built-in air-quality sensors automatically adjust fan speed when pollution levels rise.
### How quiet is it claimed to be?
The listing describes operation as quiet as 19 dB, it does not specify a particular fan setting for that figure.

## Alternative options

- [Blue Pure 511i Max Filter Replacement for Blueair 511i Max Air Purifier \| Fits for Blue Air 511i Max Purifiers, F5MAX Filter\(NOT for 511\), HEPA & Activated Carbon Air Filter, 2 Pack](https://best-deals.pro/visit/blueair-blue-pure-511i-max-air-purifier)
- [BLUEAIR Air Purifiers for Home Bedroom Dorm Office up to 907 Ft², Blue 511 \| Compact, quiet 24dB HEPASilent filtration, AHAM Verified, Energy Star, Washable Pre-Filter, Captures Pet Hair Allergens Smoke](https://best-deals.pro/visit/blueair-blue-pure-511-air-purifier)
- [BLUEAIR Air Purifiers for Home Bedroom Dorm up to 1,190 Ft², Signature SP1i \| OdorFence Removes Odors, WiFi, Auto Detects Particles & Gases, Swedish Engineered Quiet 19dB & Compact HEPASilent Filtration](https://best-deals.pro/visit/blueair-blue-pure-511i-max-air-purifier)
- [511i MAX Replacement Filter for BLUEAIR 511i Max HEPASilent Air Cleaner \| for Blue Pure F5MAX, Model Blue Pure 511i Max \(NOT for 511\), 2-pack](https://best-deals.pro/visit/blueair-blue-pure-511i-max-air-purifier)

## Add-ons

- [BLUEAIR Air Purifiers for Home up to 2,107 Ft², Blue 311i Max \| WiFi, Auto Mode, Quiet 23dB HEPASilent Filtration, AHAM Verified, Washable Pre-Filter, Captures Pet Hair Allergens Dust Smoke](https://best-deals.pro/visit/blueair-blue-pure-311i-max-smart-air-purifier)
- [BLUEAIR Air Purifiers for Small Spaces Bedroom Dorm Office, Mini Max Auto \| Compact, Auto Sensor, Quiet HEPASilent Filtration, Washable Pre-Filter, Captures Pet Hair, Allergens, Pollen, Dust, Smoke](https://best-deals.pro/visit/blueair-blue-pure-511i-max-air-purifier)

## Images

![BLUEAIR Blue Pure 511i Max Air Purifier — 1](https://best-deals.pro/i/QpdyOAOcBKYnlJPFX1ksY7omyIC-WzsrzrPNU_PdjJV0RxsNHoL3Po-m0OdUECGJYVSzINrdcyZtoMFBT3os6g1w62DeuZMSLispzOoGlpUjlv6NAjicOO2O.jpg)

![BLUEAIR Blue Pure 511i Max Air Purifier — 2](https://best-deals.pro/i/qRt95kRo9ayuX7c-nEpwqjhsAFse7LQmDTz4RdWuZY2Hyd1WsT4tjECFFmERA_d_uh9_ji6YhMPm8px7FOkkuzR8pqa8HU83pSrD043vhCog5X8d4527zEwr.jpg)

![BLUEAIR Blue Pure 511i Max Air Purifier — 3](https://best-deals.pro/i/66xyRosELNaTWHzFHj_CYBdrYDejSS9YbphVuDcZ9kPphflrUGDh72YBZSSVlTIOSxy14GdLaY4U0HtAMpj6P7FX9FWbVTJzbnDaYXlmVWx2maVEKlNKOQ6Z.jpg)

![BLUEAIR Blue Pure 511i Max Air Purifier — 4](https://best-deals.pro/i/6SsQ7-gpra-g_jCnG6E_uOyY_iS559D9OV6LyXnIYtAnmfq13Yn-BQPSzVHXsNX7dAVmDF6qrtFoSZsvZvTXwW7WHSKuh41TESVfM_hHxd8fryDNsaQMGA8u.jpg)

![BLUEAIR Blue Pure 511i Max Air Purifier — 5](https://best-deals.pro/i/4vY08q7akKjYrftq9FznaLzYdTIgkkSmKaI0ISXH9HQfD8yJE_4mEsf3ogUtSwkU5grdBZ18SVSGt5h_4TdW04R5WlslCi6ul6ExjINcehfYZ0w_MNxcsSUc.jpg)

![BLUEAIR Blue Pure 511i Max Air Purifier — 6](https://best-deals.pro/i/_0iQe7cYmodYVy8DCxXHXF2LQNLg8opZpj8c_uaLBOmTXjkM19_wa-q4IRqOLY1ikyhoIGIC1qh6RWGDx-zcr_Q9HX3LN5Gw6gmYbEVrAeDwpf8ulJSHekU_.jpg)

![BLUEAIR Blue Pure 511i Max Air Purifier — 7](https://best-deals.pro/i/um9ORU1EyGsT_qzFyjOg7Uge5FgtgURORbDsFfAqaQOkTZ8pYg_EflCMxvCh1v1o1U1Zihc-VabTUNEylrPa-9mRFcyDqRR563gIWEogRDqTeUfcq_bAxymc.jpg)