#1
Blueair
Blue Pure 311i Max
14 positive 2 neutral 4 negative
Based on 20 Reddit mentions
$229.00
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Most discussed features
Sentiment summary across the product areas Reddit users mention most.
Reddit mentions
Original Reddit posts and comments behind this analysis.
Costco: Winix C909 or Blueair 311i+?
Here’s their performance and price: -c909: 522sqft vs 311i+ max: 525sqft -$200($160 if on discount) vs $240(not sure abt the 311i+ discount) -filter at costco is $40($30 if discount) vs $50($37 if u buy filter subscription on blueair website) -90watt vs 38watt(highest setting) blueair 311i+ max: 12.
...Quietly-Kat-8298 in r/AirPurifiers
February 17, 2026 12:10 AM
2
Looking for a recommendation for air purifier for our apartment.
"Blue Pure 311i Max" by Blueair was my first and only purchase and I feel like I struck gold. After reading great accounts last year of people successfully mitigating the forest fire smoke the crept in their homes from California forest fires - I decided to try one out. It runs on auto, is silent, h
...teetuh in r/AirPurifiers
September 18, 2025 8:02 AM
1
