Blueair Protect 7470i Smart Purifier
The Blueair Protect 7470i Smart Purifier delivers verified AHAM CADR performance (270 Smoke / 275 Dust) for rooms up to 418 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 270 Smoke CADR rating
- Whisper-quiet sleep mode (22)
- Energy Star low power consumption
- Real-time air quality sensor
- Replacement filter required every 6 to 12 months
- Coverage capped at 418 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 | 418 sq ft @ 4.8 ACH (1000 sq ft @ 2 ACH) |
| Smoke CADR | 270 CFM | Dust / Pollen CADR | 275 / 280 CFM |
| Acoustic Noise | 22 – 45 dB | Rated Room Coverage | 418 sq ft @ 4.8 ACH (1000 sq ft @ 2 ACH) |
| Replacement Filter Cost | $89.99 | Replacement Interval | Every 12 Months months |
| Annual Consumable Cost | 89.99 | Compatible Equipment | Blueair 7470i System |
Our Take on the Blueair Protect 7470i Smart Purifier
An exceptionally reliable room air purifier with whisper-quiet operation (22 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 Protect 7470i Smart Purifier
What size room can the Blueair Protect 7470i Smart Purifier handle?
It is certified for rooms up to 418 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 22, which is quieter than a gentle whisper.
How much do replacement filters cost for the 7470i?
Official SmartFilter 7400 replacement filters typically cost between $30 and $45 per cycle.
Direct Compatible Alternatives
Coway Airmega AP-1512HH Mighty Air Purifier
When to choose: Comparable medium-room air purifier alternative.
Levoit Core 400S Smart Air Purifier
When to choose: Alternative medium-room air purifier with similar CADR profile.