Our Verdict
Blue Pure 211i Max Wins
It offers a known CADR smoke of 410 and a quiet 23 dB noise level. Choose Blue Signature for slightly larger coverage at 3385 sq ft if other specs are less critical.
Spec Comparison
4 specs compared
| Specification |  |  |
|---|---|---|
| Price | $348 | $245 |
| Rating | 4.7(172) | 4.5(12.5k) |
| Cadr Smoke | — | 410 |
| Coverage Sq Ft | 3385 | 3048 |
| Noise Level db Min | — | 23 dB |
| Filter Cost Yearly | — | — |
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Frequently Asked Questions
Common questions about this comparison
Which air purifier is more effective for removing smoke?
The Blue Pure 211i Max has a specified CADR smoke of 410, indicating strong smoke removal. The Blue Signature does not provide a CADR smoke rating, so direct comparison on this specific metric is not possible.
What is the main difference in room coverage between the two models?
The Blue Signature model covers a larger area of up to 3385 sq ft. The Blue Pure 211i Max covers up to 3048 sq ft. Both are designed for large rooms, but Blue Signature offers slightly more coverage.
Which model operates at a quieter noise level?
The Blue Pure 211i Max specifies a minimum noise level of 23 dB, making it a very quiet option. The Blue Signature does not provide a minimum noise level specification, preventing a direct comparison.
Do both models offer smart features and connectivity?
The Blue Signature explicitly mentions "Smart WiFi" and "Auto Mode." The Blue Pure 211i Max is described as a "HEPASilent Smart Air Cleaner." Both are smart, with Blue Signature highlighting specific WiFi capability.
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