CADR 440 CFM——此处测试最高值——覆盖81㎡，在50㎡客厅中提供5次/小时换气。多色面料预滤网。应用监测室外空气质量，在烟雾进入前主动调节风速。高端但对大空间物有所值。
Available on amazon.ca · 价格以加拿大元计。通过Amazon.ca配送。
Annual running cost: ~$80 filters + $14 power · We earn a commission at no extra cost to you
| CADR | 440 CFM |
| Coverage | 870 sq ft |
| Filter | HEPASilent + carbon |
| Noise (sleep) | 23 dB |
| ACH (540 sq ft) | 5×/hr |
| Annual cost | ~$80 filters + $14 power |
The Blueair Blue Pure 211i Max is the performance leader in our comparison. Its 440 CFM CADR is the highest we've tested at any price point under $350, enabling 5 full air changes per hour in a 540 sq ft living room. If you have a large open-plan space, nothing here comes close.
The HEPASilent technology combines mechanical and electrostatic filtration, which Blueair claims allows a quieter motor to achieve higher particle removal rates. In practice the 23 dB sleep mode is the quietest of our premium models — impressively quiet for a machine moving this much air.
The standout smart feature is the Blueair app's outdoor air quality integration. It monitors PM2.5 levels in your postcode and automatically increases fan speed before wildfire smoke or pollution events reach indoor levels. During California wildfire season testing, this proactive response was genuinely useful.
The main trade-off is cost: $279 purchase price plus approximately $80/yr in filters (the most expensive running cost here). The fabric pre-filter is washable and available in multiple colours, which contributes to the Scandinavian aesthetic. For large spaces and households with high sensitivity to air quality events, the Blueair earns its premium price.
CA$377 · 价格以加拿大元计。通过Amazon.ca配送。
See how the Blue Pure 211i Max stacks up against all 6 models in our full side-by-side comparison.
完整对比 →