Choose Blueair Blue Signature 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 Signature has a smoke CADR of 455 CFM versus 112 CFM for the Membrane Solutions MSA3, a difference of 306%.
Which purifier is quieter?
Membrane Solutions MSA3 is quieter (22 vs 23 dB).
Which purifier covers a larger room?
Blueair Blue Signature fits a larger room (about 705 vs 174 sq ft recommended from CADR).
Which purifier has better smart features?
Blueair Blue Signature lists Wi-Fi or app control; Membrane Solutions MSA3 does not.
Which purifier has better filtration?
Blueair Blue Signature lists HEPASilent; Membrane Solutions MSA3 lists HEPA.
Bottom line
Choose Blueair Blue Signature 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 Signature | Membrane Solutions MSA3 | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 455 CFM | 112 CFM | Blueair Blue Signature (+306%) |
| Recommended room size | 705 sq ft | 174 sq ft | Blueair Blue Signature (+305%) |
| Manufacturer claimed coverage | 3385 sq ft | 1590 sq ft | — |
| Minimum noise | 23 dB | 22 dB | Membrane Solutions MSA3 |
| Filter type | HEPASilent | HEPA | — |
| Replacement interval | — | 3-6 months | — |
| Power | 42 W | 44 Watts | — |
| Wi-Fi / app | Yes | No | — |
| Dimensions | 17.2 × 15.5 × 15.5 in | — | — |
| Weight | 13.2 lb | 13.6 lb | — |