Choose Blueair Blue Signature for higher CADR and larger-room coverage and Wi-Fi or app control. Choose Jafanda Air JF280 if you want lower noise.
Which purifier has higher CADR?
The Blueair Blue Signature has a smoke CADR of 455 CFM versus 135 CFM for the Jafanda Air JF280, a difference of 237%.
Which purifier is quieter?
Jafanda Air JF280 is quieter (20 vs 23 dB).
Which purifier covers a larger room?
Blueair Blue Signature fits a larger room (about 705 vs 209 sq ft recommended from CADR).
Which purifier has better smart features?
Blueair Blue Signature lists Wi-Fi or app control; Jafanda Air JF280 does not.
Which purifier has better filtration?
Blueair Blue Signature lists HEPASilent; Jafanda Air JF280 lists HEPA.
Bottom line
Choose Blueair Blue Signature for higher CADR and larger-room coverage and Wi-Fi or app control. Choose Jafanda Air JF280 if you want lower noise.
| Metric | Blueair Blue Signature | Jafanda Air JF280 | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 455 CFM | 135 CFM | Blueair Blue Signature (+237%) |
| Recommended room size | 705 sq ft | 209 sq ft | Blueair Blue Signature (+237%) |
| Manufacturer claimed coverage | 3385 sq ft | 1015 sq ft | — |
| Minimum noise | 23 dB | 20 dB | Jafanda Air JF280 |
| Filter type | HEPASilent | HEPA | — |
| Power | 42 W | — | — |
| Wi-Fi / app | Yes | No | — |
| Dimensions | 17.2 × 15.5 × 15.5 in | 10.1 × 6.5 × 13 in | — |
| Weight | 13.2 lb | 6.5 lb | — |