Choose Blueair Blue Pure 211i Max for higher CADR and larger-room coverage and Wi-Fi or app control. Choose Membrane Solutions MSA3 if you want lower noise.
Which purifier has higher CADR?
The Blueair Blue Pure 211i Max has a smoke CADR of 435 CFM versus 112 CFM for the Membrane Solutions MSA3, a difference of 288%.
Which purifier is quieter?
Membrane Solutions MSA3 is quieter (22 vs 23 dB).
Which purifier covers a larger room?
Blueair Blue Pure 211i Max fits a larger room (about 674 vs 174 sq ft recommended from CADR).
Which purifier has better smart features?
Blueair Blue Pure 211i Max lists Wi-Fi or app control; Membrane Solutions MSA3 does not.
Which purifier has better filtration?
Blueair Blue Pure 211i Max lists HEPASilent; Membrane Solutions MSA3 lists HEPA.
Bottom line
Choose Blueair Blue Pure 211i Max for higher CADR and larger-room coverage and Wi-Fi or app control. Choose Membrane Solutions MSA3 if you want lower noise.
| Metric | Blueair Blue Pure 211i Max | Membrane Solutions MSA3 | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 435 CFM | 112 CFM | Blueair Blue Pure 211i Max (+288%) |
| Recommended room size | 674 sq ft | 174 sq ft | Blueair Blue Pure 211i Max (+287%) |
| Manufacturer claimed coverage | 3235 sq ft | 1590 sq ft | — |
| Minimum noise | 23 dB | 22 dB | Membrane Solutions MSA3 |
| Filter type | HEPASilent | HEPA | — |
| Replacement interval | — | 3-6 months | — |
| Power | 46 W | 44 Watts | — |
| Wi-Fi / app | Yes | No | — |
| Dimensions | 22.7 × 14.4 × 14.4 in | — | — |
| Weight | 16.2 lb | 13.6 lb | — |