Blueair
Blueair Blue Pure 311i+ Max
A HEPASilent + carbon (F3MAX+) air purifier rated for rooms up to 465 sq ft with a smoke CADR of 339 CFM.
AHAM VerifideEnergy StarCARB
Key specs
Room coverage465 sq ft
CADR · smoke339 CFM
CADR · dust370 CFM
CADR · pollen446 CFM
Noise range25–50 dB
Filter life9 months
Warranty1 years
What owners say
Filter by theme
- 4.0 out of 5 stars
“The BlueAir 311i+ Max is cheaper, quieter, and aesthetically pleasing.”
Research notes
No clean single-unit amazon.com /dp ASIN found (filters and 311i Max B0BN2LZ9JH are common). Specs from Blueair/CR. Do not confuse with non-plus 311i Max.
Compare with similar models
- Blueair$139.99Blueair Blue Pure 511i Max4.2 out of 5 stars4.2/5i237 sq ftAuto mode & sensorsQuiet operation“Absolutely! The Blueair Blue Pure 511i Max is a great choice.”
- Blueair$349.99Blueair Blue Pure 211i Max3.3 out of 5 stars3.3/5i674 sq ft“The Blueair 211i Max is fantastic.”
- WinixPrice variesWinix 5500-23.9 out of 5 stars3.9/5i360 sq ftAHAMEnergy StarCARBPet hair & danderAllergy relief“Winix 5500-2 works great.”
- Coway$229.99Coway Airmega AP-1512HH3.7 out of 5 stars3.7/5i361 sq ftAHAMEnergy StarCARBValue for moneyNoise“Coway AP-1512HH comes in at your max budget and does a great job.”
Full specifications
- cadr dust
- 370
- cadr smoke
- 339
- confidence
- medium
- dimensions
- 12.5 x 12.5 x 21 in
- weight lbs
- 8.0
- cadr pollen
- 446
- energy star
- True
- filter type
- HEPASilent + carbon (F3MAX+)
- model number
- Blue Pure 311i+ Max
- noise db max
- 50
- noise db min
- 25
- aham verified
- True
- carb certified
- True
- smart features
- Blueair app, Auto mode, particle sensor, Alexa
- warranty years
- 1
- source mentions
- 1
- room coverage sqft
- 465
- has activated carbon
- True
- filter lifespan months
- 9