Review · Blueair
Blueair Blue Pure 311i Max
Blueair's compact smart purifier with CADR 191 for smoke — whisper-quiet, app-controlled, and designed for bedrooms and medium rooms up to 310 sq ft.
Check Price on AmazonThe 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 — you're paying for quiet and design.
Full specifications
CADR · Smoke 191CFM AHAM
CADR · Dust 195CFM
CADR · Pollen 199CFM
Room coverage 310sq ft
HEPA rating HEPASilent (99.97% at 0.1 microns)
Filter stages 2-stage
Noise · range 22–52dB
Noise · sleep 22dB
Max power 30W
Energy Star Certified
Filter life 6–6months
Annual filter cost
$59.98 — estimate
Dimensions · H × W × D 20.5″ × 10.4″ × 10.4″
Weight 7.3lbs
App control Yes
Voice control Alexa · Google Home
Warranty 1year
Price · MSRP $199.99
Pros & cons
Strengths
- 22dB in sleep mode — 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 — 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 — looks premium, not clinical
Caveats
- 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 — higher than some alternatives
- CADR 191 is solid for small rooms but not appropriate for open-plan or combined living areas
Where to buy
Ready to buy the Blueair Blue Pure 311i Max?
Check Price on AmazonPrice 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 .