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Blueair Blue Pure 311i Max air purifier

Blueair Blue Pure 311i Max Review

Blueair's compact smart purifier with CADR 191 for smoke โ€” whisper-quiet, app-controlled, and designed for bedrooms and medium rooms up to 310 sq ft.

Price: $199.99 ยท Last checked: 2026-04-01 ยท Updated

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Our Verdict

The Blueair Blue Pure 311i Max is the pick for bedroom-first buyers who prioritise ultra-quiet operation and smart features over raw CADR performance. Its 22dB sleep mode is genuinely whisper-quiet and the HEPASilent tech delivers clean air at lower noise levels than most competitors. The price premium over alternatives is real โ€” you're paying for quiet and design.

Full Specifications

CADR โ€” Smoke
191 CFM AHAM
CADR โ€” Dust
195 CFM
CADR โ€” Pollen
199 CFM
Room Coverage
310 sq ft
HEPA Rating
HEPASilent (99.97% at 0.1 microns)
Filter Stages
2-stage
Noise (Low โ†’ High)
22โ€“52 dB
Sleep Mode Noise
22 dB
Max Power
30W
Energy Star
โœ… Yes
Filter Life
6โ€“6 months
Annual Filter Cost
$59.98 (estimate)
Dimensions (Hร—Wร—D)
20.5"ร—10.4"ร—10.4"
Weight
7.3 lbs
App Control
โœ… Yes
Voice Control
Alexa, Google Home
Warranty
1 years
Price (MSRP)
$199.99

Pros & Cons

โœ… Pros

  • 22dB in sleep mode โ€” one of the quietest air purifiers tested at this coverage level
  • HEPASilent technology: electrostatic + mechanical filtration captures particles at lower fan speeds (less noise for equivalent clean air delivery)
  • 30W max power draw โ€” among the most energy-efficient units on the market
  • Full app control with air quality monitoring and scheduling via the Blueair app
  • Clean Scandinavian design โ€” looks premium, not clinical

โŒ Cons

  • At $200 it's priced significantly above competitors with comparable CADR (Coway AP-1512HH at $110 has higher CADR)
  • Filter replacement every 6 months ($30) adds up to ~$60/yr โ€” higher than some alternatives
  • CADR 191 is solid for small rooms but not appropriate for open-plan or combined living areas

Ready to buy the Blueair Blue Pure 311i Max?

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Price last checked 2026-04-01. Affiliate disclosure applies.

Data sourced from: AHAM Verifide, Amazon listing, Manufacturer site. CADR figures are AHAM Verifide certified. Last updated: .