Blueair
Blue Pure 311i Max
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.
Blueair 311i+ Max discontinued? Disappeared from Costco's website today!
Hmm not seeing what you're seeing...I'm seeing $240, but ya your right, they are available so not discontinued at least. https://www.blueair.com/products/blue-pure-311i-plus-max?srsltid=AfmBOorh6W7WeKGc75U6aAXmYbFpzgRfiafao2ZBWp27ITb0yZrUabyH I'm glad too because you scared me for a sec. I paid like
...volxlovian in r/Blueair
February 17, 2026 9:16 PM
2
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
Costco: Winix C909 or Blueair 311i+?
I'm unsure about ion concentrations the Blueair produces vs. Winix, so you may or may not notice a difference. For Blueair and Winix, the activated carbon angle is moot. These brands (and most other common consumer-grade purifiers) have far too little activated carbon or other sorbent media by weigh
...sissasassafrastic in r/AirPurifiers
February 17, 2026 9:43 PM
1
Best Air Purifier on Amazon?
I just pulled up the 8 reviews on Consumer Reports. If you look at the 8 reviews the ones that are all bad are primarily due to how much they filter on the lowest setting. That's a pretty awful standard to use because some machines have a few levels of fan speeds. Most good reviews have a minimum DB
...Ashamed-Status-9668 in r/AirQuality
October 8, 2025 11:39 AM
1