Blueair
Blueair Blue Pure 211+ Auto
Air purifiers
$339List price
Explore this product Your shortlist, side by side
Blueair Blue Pure 211+ Auto vs Honeywell HPA300 HEPA Air Purifier
Find the differences that matter for your next decision.
Honeywell
Honeywell HPA300 HEPA Air Purifier
Air purifiers
$249List 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 Blue Pure 211+ Auto.
- Leads 5 of 6 rankable overall specs; Honeywell HPA300 HEPA Air Purifier takes 1.
- CADR: 353 CFM vs 300 CFM
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.
Coverage area: 550 sq ft vs 465 sq ft
Honeywell HPA300 HEPA Air Purifier is $90 cheaper. Pay the difference only if cadr matters to you.
The trade-off to know
Check first: the Blueair Blue Pure 211+ Auto has no Wi-Fi app. 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 Blue Pure 211+ Auto | Honeywell HPA300 HEPA Air Purifier |
|---|---|---|
| CADRPerformance | 353 CFM (Smoke), 347 CFM (Dust), 380 CFM (Pollen) | 300 CFM (Smoke), 320 CFM (Dust), 300 CFM (Pollen) |
| Room sizePerformance | Large living rooms, open floor plans, master suites | Extra large rooms, master suites, open spaces up to 465 sq ft (4.8 ACH) |
| Coverage areaPerformance | 550 sq ft (4.8 air changes/hr) / 1,320 sq ft (2 air changes/hr) | 465 sq ft (4.8 air changes/hr) / 2,250 sq ft (1 air change/hr) |
| Filter typesFilters | Washable fabric pre-filter + HEPASilent main filter (Particle + Carbon) | Type A Activated Carbon Pre-filter + 3× Type R True HEPA filters |
| Filter lifeFilters | 6 months | 3 months (Pre-filter) / 12 months (True HEPA filters) |
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 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
Honeywell HPA300 HEPA Air Purifier
Reasons to choose it
- Powerful high-volume CADR (300+ CFM) for large rooms up to 465 sq ft
- Certified True HEPA captures 99.97% of airborne particles
- Durable workhorse build with touch-button controls
Worth considering
- High power consumption (up to 130W on Turbo)
- No Wi-Fi app or smart automated air quality sensors
Beyond the spec sheet
Living with your choice.
Explore the ownership details available for this pair.
What three years could cost
Blueair Blue Pure 211+ Auto
3-Year Estimated Total$474
Honeywell HPA300 HEPA Air Purifier
3-Year Estimated Total$444
Room Placement & Bedroom Noise Check
Physical clearance required for airflow, wall placement, and bedroom noise levels.
Wall Clearance Required
Blueair
Requires 12 in perimeter airflow space
Honeywell
Front grille intake: can back up close to baseboards
Nighttime Sleep Mode Noise
Blueair
Standard sleep speed
Honeywell
30 dB lowest fan speed (noticeable background white noise)
Unit Footprint & Dimensions
Blueair
Standard room purifier footprint
Honeywell
Large commercial-grade shell (20.8 × 22.3 × 10.8 in; 17.0 lb)
Everyday ownership notes
Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.
Blueair: What to watch for
- Maintenance
Requires periodic filter replacements to maintain airflow and odor capture.
Honeywell: 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 Blue Pure 211+ Auto or the Honeywell HPA300 HEPA Air Purifier?
Honeywell HPA300 HEPA Air Purifier costs $90 less at list price.
What is the biggest catch with the Blueair Blue Pure 211+ Auto or Honeywell HPA300 HEPA Air Purifier?
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 Blue Pure 211+ Auto or the Honeywell HPA300 HEPA Air Purifier?
For bedrooms, buy the Blueair Blue Pure 211+ Auto. Leads 2 of 2 rankable bedrooms specs. Noise levels: 23 dB vs 38 dB
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.