Blueair
Blueair Protect 7470i
Air purifiers
$649List price
Explore this product Your shortlist, side by side
Blueair Protect 7470i vs Blueair Blue Pure 211+ Auto
Find the differences that matter for your next decision.
Blueair
Blueair Blue Pure 211+ Auto
Air purifiers
$339List price
Explore this product What matters most to you?
Start with all rankable specifications, or focus on a particular use.
Your starting point
Buy the Blueair Protect 7470i.
- Leads 4 of 6 rankable overall specs; Blueair Blue Pure 211+ Auto takes 2.
- Coverage area: 1,035 sq ft vs 550 sq ft
How we reached this
We compare the published specifications relevant to your priority. Each rankable specification counts once; your selected requirements can rule a product out. This is a guide to the numbers, not a laboratory performance score.
Filter life: 6–12 months with real-time algorithm filter… vs 6 months
Blueair Blue Pure 211+ Auto is $310 cheaper. Pay the difference only if coverage area matters to you.
The trade-off to know
Check first: the Blueair Protect 7470i weighs over 25 lb (11 kg). Tick them under deal-breakers if that rules it out.
Look at the differences ↓Refine your requirements
What would rule one out?
Side by side
The differences, in detail.
Start with the key specs, then explore as much as you need.
| What you’re comparing | Blueair Protect 7470i | Blueair Blue Pure 211+ Auto |
|---|---|---|
| CADRPerformance | 270 CFM (Smoke), 275 CFM (Dust), 280 CFM (Pollen) | 353 CFM (Smoke), 347 CFM (Dust), 380 CFM (Pollen) |
| Room sizePerformance | Master bedrooms, living areas up to 418 sq ft (5 ACH) | Large living rooms, open floor plans, master suites |
| Coverage areaPerformance | 1,035 sq ft (2 air changes/hr) / 418 sq ft (5 air changes/hr) | 550 sq ft (4.8 air changes/hr) / 1,320 sq ft (2 air changes/hr) |
| Filter typesFilters | SmartFilter with Smart RFID chip (HEPASilent Ultra + Activated Carbon) | Washable fabric pre-filter + HEPASilent main filter (Particle + Carbon) |
| Filter lifeFilters | 6–12 months with real-time algorithm filter tracking | 6 months |
Showing 5 of 11 specifications. Missing values stay unlisted. About the sources
Both sides of the decision
What you gain. What you give up.
Blueair Protect 7470i
Reasons to choose it
- HEPASilent Ultra electrostatic + mechanical filtration kills 99% of germs
- SpiralAir omnidirectional airflow distributes clean air evenly
- Premium matte build with intuitive LCD air quality touchscreen
Worth considering
- SmartFilter replacements are relatively costly
- Heavier metallic construction
Blueair Blue Pure 211+ Auto
Reasons to choose it
- High 353 CFM CADR cleans a 550 sq ft living room in just 12.5 minutes
- HEPASilent electrostatic + mechanical filtration maximizes airflow and efficiency
- Interchangeable washable fabric pre-filters in multiple designer colors
Worth considering
- No mobile app or Wi-Fi schedule controls (one-button operation)
- Reaches 56 dB at highest turbo fan setting
Beyond the spec sheet
Living with your choice.
Explore the ownership details available for this pair.
Is the newer model worth it?
Blueair sibling models compared across generations.
Our recommendation: Compare the spec differences below to see if the price premium justifies the newer model's additions.
What three years could cost
Blueair Protect 7470i
3-Year Estimated Total$889
Blueair Blue Pure 211+ Auto
3-Year Estimated Total$474
Everyday ownership notes
Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.
Protect 7470i: What to watch for
- Maintenance
Requires periodic filter replacements to maintain airflow and odor capture.
Blue Pure 211+ Auto: What to watch for
- Maintenance
Requires periodic filter replacements to maintain airflow and odor capture.
Know what’s behind the comparison
Published specs. Visible sources.
Clinchmark compares manufacturer specifications and other published information. We have not independently lab-tested these products. Editorial assessments and unknown values are identified in the specification details.
Catalog snapshot: September 1, 2026. Prices, availability, and provider terms can change.
Still weighing it up?
Which is cheaper, the Blueair Protect 7470i or the Blueair Blue Pure 211+ Auto?
Blueair Blue Pure 211+ Auto costs $310 less at list price.
What is the biggest catch with the Blueair Protect 7470i or Blueair Blue Pure 211+ Auto?
Blueair Blue Pure 211+ Auto has this deal-breaker: no Wi-Fi app. No schedules or remote control from your phone.
Which is better for bedrooms, the Blueair Protect 7470i or the Blueair Blue Pure 211+ Auto?
Tied on bedrooms. Blueair Blue Pure 211+ Auto is cheaper. The 2 rankable bedrooms specs split 1 to 1. Saves $310 at list price.
What cannot be compared from spec sheets?
Of the 11 specs tracked here, 5 are descriptive and cannot be ranked on numbers alone. Spec sheets also cannot measure subjective factors like build quality, real-world performance, or comfort.