#1
Blueair
Blue Pure 311i Max
37 positive 2 neutral 4 negative
Based on 43 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+?
Well the actived carbon filter does help a tiny tiny bit with odor, but not much since you need pounds of actived carbon to actually see a difference, it’s much better to open a window/door and use a fan, aka ventilation for odor. So this shouldn’t be a deciding factor, I’d say ur good regarding thi
...Quietly-Kat-8298 in r/AirPurifiers
February 17, 2026 3:06 AM
1
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