Blueair Blue Pure 211+ Auto
The Blueair Blue Pure 211+ Auto delivers verified AHAM CADR performance (353 Smoke / 350 Dust) for rooms up to 550 sq ft. Featuring multi-stage H13 True HEPA and active odor adsorption.
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3-Year True Cost of Ownership Model
Independent chamber CADR verified under AHAM AC-1 protocol.
Minimal airflow drop (~0.14 in. w.g.) protects blowers with limited static headroom.
Thermal beverage board frame with wire backing to prevent media collapse under blower load.
Bulk multi-pack procurement typically reduces annual per-filter cost by 25% to 40%.
- Certified 353 Smoke CADR rating
- Whisper-quiet sleep mode (23)
- Energy Star low power consumption
- Real-time air quality sensor
- Replacement filter required every 6 to 12 months
- Coverage capped at 550 sq ft
Verified Engineering Specifications
| Nominal Dimensions | Round / Custom Cartridge | Actual Dimensions | Integrated Machine Unit |
|---|---|---|---|
| Filter Depth | Standalone Unit | Media Construction | H13 True HEPA & Granular Carbon |
| ASHRAE MERV Rating | MERV 17 (True HEPA) | Proprietary Rating | |
| Initial Resistance | Integrated Variable Multi-Speed Blower | Airflow Capacity | 550 sq ft @ 4.8 ACH (1320 sq ft @ 2 ACH) |
| Smoke CADR | 353 CFM | Dust / Pollen CADR | 347 / 380 CFM |
| Acoustic Noise | 23 – 53 dB | Rated Room Coverage | 550 sq ft @ 4.8 ACH (1320 sq ft @ 2 ACH) |
| Replacement Filter Cost | $69.99 | Replacement Interval | Every 6 Months months |
| Annual Consumable Cost | 139.98 | Compatible Equipment | Blueair 211+ Auto System |
Our Take on the Blueair Blue Pure 211+ Auto
An exceptionally reliable room air purifier with whisper-quiet operation (23 min noise) and proven particle removal.
Filtration Performance Note
Traps 99.97% of particles down to 0.3 microns, including pollen, pet dander, mold spores, and airborne smoke particles.
Installation, Airflow Direction & Maintenance Protocol
Place 12 inches away from walls for unobstructed 360-degree intake. Replace HEPA filter when indicator light illuminates.
Common Questions About the Blueair Blue Pure 211+ Auto
What size room can the Blueair Blue Pure 211+ Auto handle?
It is certified for rooms up to 550 sq ft, completing roughly 5 air changes per hour in spaces of that volume.
How noisy is this purifier on low speed?
On its lowest setting, sound levels drop to 23, which is quieter than a gentle whisper.
How much do replacement filters cost for the 211+ Auto?
Official Blue Pure 211+ Particle+Carbon replacement filters typically cost between $30 and $45 per cycle.
Direct Compatible Alternatives
Levoit Core 600S Smart Air Purifier
When to choose: Comparable large-room air purifier alternative.
Levoit EverestAir Smart Air Purifier
When to choose: Alternative large-room air purifier with similar CADR profile.