I'm glad too because you scared me for a sec
volxlovian in r/Blueair
Source49 Reddit comments and posts discuss both products: 13 lean toward Blueair Blue Pure 311, 15 toward Blueair Blue Pure 311i Max, and 21 don't pick a side.
I'm glad too because you scared me for a sec
volxlovian in r/Blueair
Sourceif the 311i+ max fit your space much much better than the c909
Quietly-Kat-8298 in r/AirPurifiers
Sourcethe actived carbon filter does help a tiny tiny bit with odor
Quietly-Kat-8298 in r/AirPurifiers
SourceI use Blueair 311i max
404-cannot_be_found in r/Apartmentliving
SourceTop rated: Coway Airmega ProX Blueair Blue Pure 311i+ Max GermGuardian CDAP4500BCA
Caprichoso1 in r/AirPurifiers
Sourcesignificantly quieter than the previous generation
One_Mess525 in r/HomeClimateTech
SourceGreen marks the row winner: the strongest supported feature sentiment with at least 3 mentions, or the lowest listed price. Everything else stays neutral.
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| Feature | Blueair Blue Pure 311 | Blueair Blue Pure 311i Max |
|---|---|---|
| Price | ||
| noise level | | |
| purification performance | | |
| design | | |
| filter quality | | |
| airflow | | |
| coverage area | | |
| value | | |
| filter cost | | |
| smart features | | |
| build quality | | |
We may earn a small commission.
We may earn a small commission.
49 Reddit comments and posts discuss both products: 13 lean toward Blueair Blue Pure 311, 15 toward Blueair Blue Pure 311i Max, and 21 don't pick a side. Overall, Reddit is fairly split — the better pick depends on your priorities.
Across all discussions RedDB tracks, Blueair Blue Pure 311 has 89% positive sentiment over 47 Reddit mentions, while Blueair Blue Pure 311i Max has 86% positive sentiment over 43 mentions.