Skip to content
Clinchmark

Blueair · Air purifiers

Blueair Blue Pure 311i Max

Smart air purifier with HEPASilent dual filtration technology, cleaning up to 929 sq ft in 30 minutes, 23dB whisper quiet operation, and Blueair app control.

List price

$229

11 attributes tracked

Catalog as of September 1, 2026

Manufacturer list price, not a live offer. Confirm current pricing before you buy.

CADR

250 CFM (Smoke), 250 CFM (Dust), 250 CFM (Pollen)

Coverage area

387 sq ft (4.8 air changes/hr) / 929 sq ft (2 air changes/hr)

What it does well

  • HEPASilent dual filtration combines electrostatic and mechanical filtration for faster airflow at lower noise
  • Cleans up to 387 sq ft in 12.5 minutes (4.8 ACH) / up to 929 sq ft in 30 minutes (2 ACH)
  • Ultra-quiet 23dB Night Mode with Energy Star certified low electricity draw

Where it gives ground

  • Fabric pre-filter covers the exterior and requires periodic vacuuming/washing
  • Filter replacements needed every 6 to 9 months

Compare it head to head

The fastest way to decide is against the product you are actually cross shopping. Showing 4 of 12 published matchups.

Air purifiers11 differing specs

Alen BreatheSmart 75i Large Room Air Purifier

$749

Blueair Blue Pure 311i Max

$229

Evenly split on rankable specs, so price and taste decide it.

See the breakdown
Air purifiers11 differing specs

Blueair Blue Pure 211+ Auto

$339

Blueair Blue Pure 311i Max

$229

Blueair Blue Pure 211+ Auto leads on 2 of 3 rankable specs, but Blueair Blue Pure 311i Max saves $110.

See the breakdown
Air purifiers11 differing specs

Blueair Blue Pure 311i Max

$229

Coway Airmega 250

$399

Coway leads on 3 of 5 rankable specs, but Blueair saves $170.

See the breakdown
Air purifiers11 differing specs

Blueair Protect 7470i

$649

Blueair Blue Pure 311i Max

$229

Blueair Protect 7470i leads on 4 of 5 rankable specs, but Blueair Blue Pure 311i Max saves $420.

See the breakdown

Full specifications

Performance

CADR
250 CFM (Smoke), 250 CFM (Dust), 250 CFM (Pollen)
Room size
Medium to large bedrooms, living rooms, and open offices up to 387 sq ft (4.8 ACH) / 929 sq ft (2 ACH)
Coverage area
387 sq ft (4.8 air changes/hr) / 929 sq ft (2 air changes/hr)

Filters

Filter types
HEPASilent Main Particle + Carbon filter with customizable machine-washable fabric pre-filter
Filter life
6 to 9 months (tracked by RealTrack algorithm in app)

Usability & Smart

Noise levels
23 dB (Night mode) – 50 dB (Max boost)
Energy consumption
38 W max power consumption (Energy Star Most Efficient)
Smart features
Blueair App (iOS/Android), voice control with Amazon Alexa and Google Assistant, geofencing Welcome Home feature
Air quality sensors
Laser particle sensor with 5-color LED air quality indicator ring (PM1, PM2.5, PM10)

Design & Ownership

Weight
7.8 lb (3.5 kg)
Warranty
2 years limited warranty (extendable to 3 years with product registration)
Most rows are from the official spec sheet. Marked rows are other published figures or our summary, not lab tests we ran.Official Blueair Blue Pure 311i Max spec sheet (opens in a new tab)

Other air purifiers we track

Coway

Coway Airmega AP-1512HH Mighty

$229

CompareSpecs

Levoit

Levoit Core 400S

$219

CompareSpecs

Honeywell

Honeywell HPA300 HEPA Air Purifier

$249

CompareSpecs

Levoit

Levoit Core 600S Smart True HEPA

$299

CompareSpecs

Winix

Winix 5500-2 Air Purifier

$159

CompareSpecs

Levoit

Levoit Core 300S Smart True HEPA Air Purifier

$149

CompareSpecs

Frequently asked

How much does Blueair Blue Pure 311i Max cost?

Blueair Blue Pure 311i Max lists at $229 (manufacturer list price snapshot as of 2026-09-01). Retail prices vary by merchant and this is not a live quote.

What are Blueair Blue Pure 311i Max’s key specs?

Key specifications for Blueair Blue Pure 311i Max include cadr (250 CFM (Smoke), 250 CFM (Dust), 250 CFM (Pollen)) and coverage area (387 sq ft (4.8 air changes/hr) / 929 sq ft (2 air changes/hr)).

What does Blueair Blue Pure 311i Max compare against?

Blueair Blue Pure 311i Max is compared head to head against Alen BreatheSmart 75i Large Room Air Purifier vs Blueair Blue Pure 311i Max, Blueair Blue Pure 211+ Auto vs Blueair Blue Pure 311i Max, Blueair Blue Pure 311i Max vs Coway Airmega 250, Blueair Protect 7470i vs Blueair Blue Pure 311i Max, Coway Airmega 400 vs Blueair Blue Pure 311i Max, and Coway Airmega AP-1512HH Mighty vs Blueair Blue Pure 311i Max.