Blueair Blue Pure 211i Max vs Dyson HushJet Purifier Compact HJ10
Dyson HushJet Purifier Compact HJ10
The short answer
Blueair Blue Pure 211i Max comes out ahead overall with 7.4/10 against 7.2/10 for the Dyson HushJet Purifier Compact HJ10. Blueair Blue Pure 211i Max is stronger on cleaning performance for bedroom size and value. Dyson HushJet Purifier Compact HJ10 is stronger on noise at sleep-usable speeds, sleep-friendly features and running cost & ownership. At current verified prices, the Dyson HushJet Purifier Compact HJ10 costs about $10.00 less.
- Choose the Blueair Blue Pure 211i Max if: Owners of a large primary suite who want high CADR at night without an always-on ionizer, for about $90 less than the SP4i.
- Choose the Dyson HushJet Purifier Compact HJ10 if: Small-bedroom owners who never want to buy filters.
Scores by criterion
| Criterion | Blueair Blue Pure 211i Max | Dyson HushJet Purifier Compact HJ10 |
|---|---|---|
| Noise at sleep-usable speeds | 7.3RTINGS snippet: 33.9 dBA on low; no measured airflow below 45 dB. | 7.8Tom's Guide: 24 dB in sleep mode, at modest airflow. |
| Cleaning performance for bedroom size | 8.5435 smoke CADR rated. | 5.5203 sq ft, no AHAM CADR. |
| Sleep-friendly features | 8.0Night mode with dimmed lights, auto, app. | 8.3Sleep mode, app. |
| Indoor-air safety & materials | 7.0Zero-ozone verified and CARB; HEPASilent uses electrostatic charging. | 7.2No ionizer stated; electrostatic filter. |
| Running cost & ownership | 6.546 W; filters last about 9 months. | 9.05-year filter. |
| Value | 6.5$349. | 5.8$299.99 for small-room coverage. |
Specifications
| Spec | Blueair Blue Pure 211i Max | Dyson HushJet Purifier Compact HJ10 |
|---|---|---|
| Workflow type | Extra Large Room | — |
| Lowest-speed noise (manufacturer) | 23 dB | 24 dB |
| Top-speed noise (manufacturer) | 53 dB | — |
| Lowest-speed noise (independent measurement) | 33.9 dBA | 24 dBA |
| CADR (smoke where given, else headline) | 435 cfm | — |
| Recommended room size (4.8–5 ACH / AHAM) | 674 sq ft | 203 sq ft |
| Max power draw | 46 W | — |
| Sleep / night mode | Yes | Yes |
| App control | Yes | Yes |
| Ionizer / electrostatic stage | HEPASilent (electrostatic charging + mechanical filtration) | Electrostatic filter (no ionizer stated) |
| Filter type | HEPASilent particle + carbon filter, washable fabric pre-filter | Sealed 360° electrostatic filter + activated carbon |
| Main filter life | 9 months | 60 months |
| Quiet Mark certified | Yes | — |
Blueair Blue Pure 211i Max
Pros
- Large CADR headroom
- Night mode with dimmed lights
- Zero Ozone Verified per retailers
- Cheaper than the SP4i
- App control
Cons
- Limited independent noise testing
- Oversized for small rooms
- Loud at max, about 58.7 dBA
- Premium price
A sensible big-room alternative to the SP4i if you want to skip the unswitchable ionizer and save some money.
Full Blueair Blue Pure 211i Max review →Dyson HushJet Purifier Compact HJ10
Pros
- 24 dB in Sleep mode per Tom's Guide
- Filter rated for 5 years
- App control
- Low running cost
Cons
- Only 203 sq ft coverage
- No published CADR
- Loud at top speed, 60 dB
- Expensive for its coverage
- Bulky for a nightstand per TechRadar
A niche pick for small-room sleepers who value silence and low upkeep over airflow.
Full Dyson HushJet Purifier Compact HJ10 review →Both products are part of our guide The Best Quiet Air Purifiers for Bedrooms of 2026, where you can see every pick, how we score and current prices from each retailer.