Blueair Blue Pure 211i Max vs Dyson Purifier Cool
Side-by-side comparison of features, pricing, ratings, and alternatives.
The Blueair Blue Pure 211i Max uses HEPASilent technology to capture 99.97% of airborne particles as small as 0.1 µm, making it ideal for allergy sufferers and homes with pets. Its large‑room coverage of up to 540 sq ft ensures clean air throughout open‑plan living spaces. With an intuitive auto mode, the unit continuously monitors air quality and adjusts fan speed for optimal performance, while the washable pre‑filter captures coarse dust and extends filter life. Wi‑Fi connectivity lets you control the purifier via the Blueair Friend app, set schedules, and receive real‑time air‑quality updates.
The Dyson Purifier Cool combines a bladeless fan with a fully sealed HEPA H13 and activated carbon filtration system, capturing 99.95% of particles as small as 0.1 microns while also cooling the room using Dyson's Air Multiplier technology. A built-in laser particle sensor continuously monitors air quality and automatically adjusts purification intensity, displaying real-time pollutant levels including PM2.5, PM10, VOCs, and NO2 on the LCD screen or the Dyson Link app. Auto mode reacts to changing air quality throughout the day, while Night Mode dims the display and runs at a quieter airflow setting for undisturbed sleep, and the bladeless design is safer around children and pets than traditional fan blades.
Around $549.99 MSRP.
- High CADR for large‑room coverage
- Auto mode optimizes performance without user intervention
- Washable pre‑filter reduces ongoing filter costs
- Smart app control and real‑time air‑quality data
- Genuinely dual-purpose (cooling + purifying)
- Effective, sealed HEPA filtration
- Useful real-time air quality data
- Safer bladeless design
- Main filter replacement can be pricey
- No built‑in ionizer for additional odor control
- Limited color options
- Premium price versus separate fan + purifier
- Replacement filters add ongoing cost
- Less powerful cooling than a dedicated large fan
What reviewers say
Blueair Blue Pure 211i Max Reviews
No reviews yet.
Dyson Purifier Cool Reviews
4.7 (3)Does exactly what we need
Been a regular user of Dyson Purifier Cool for a while now. Safer bladeless design. One minor gripe: premium price versus separate fan + purifier, but it hasn't been a dealbreaker. Would recommend.
Highly recommend Dyson Purifier Cool
Been a regular user of Dyson Purifier Cool for a while now. Effective, sealed HEPA filtration. No major complaints so far. Would recommend.
Highly recommend Dyson Purifier Cool
I picked up Dyson Purifier Cool a while back and haven't looked back. Effective, sealed HEPA filtration. No major complaints so far. Would recommend.
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The Verdict
AI-generated from listing dataThe Dyson Purifier Cool offers dual cooling and purification at a lower upfront price, while the Blueair Blue Pure 211i Max delivers stronger large‑room coverage, lower noise, and better energy efficiency at a higher cost.
Key differences
- •Dyson combines a fan and purifier; Blueair is purifier‑only.
- •Blueair covers up to 540 sq ft and is Energy Star certified; Dyson’s coverage isn’t specified.
- •Blueair operates as quietly as 31 dB on low; Dyson’s noise level isn’t provided.
- •Dyson’s filters require regular paid replacements; Blueair’s washable pre‑filter extends filter life.
- •Dyson costs about $549, Blueair about $599 and includes a 5‑year warranty.
Pricing & value
Dyson MSRP ~ $549.99 vs Blueair $599, making Dyson cheaper upfront.
Energy efficiency & running cost
Blueair is Energy Star certified and uses 45 W max; Dyson’s power consumption isn’t specified.
Noise level
Blueair reports 31 dB on its lowest setting; Dyson provides no noise data.
Size & footprint
Blueair dimensions are listed; Dyson’s physical size isn’t provided.
Capacity (room coverage)
Blueair covers rooms up to 540 sq ft; Dyson’s coverage area is not specified.
Features
Dyson offers both cooling airflow and air‑quality monitoring; Blueair focuses solely on purification.
Ease of cleaning / maintenance
Blueair’s washable pre‑filter reduces filter‑change frequency; Dyson relies on replaceable HEPA filters with ongoing cost.
Warranty
Blueair provides a 5‑year warranty; Dyson’s warranty term isn’t listed.
Choose Blueair Blue Pure 211i Max if…
Large‑room owners prioritizing quiet operation, energy savings, and lower ongoing filter costs.
Choose Dyson Purifier Cool if…
Allergy‑sensitive households that want combined cooling and air‑quality data, and prefer lower upfront cost.
Common questions
Which unit is cheaper to buy and run?
Dyson costs about $549 upfront; Blueair costs $599 and is Energy Star certified, likely cheaper to run.
Do either of these provide cooling?
Only the Dyson Purifier Cool includes bladeless fan cooling; Blueair is a purifier only.
How often do I need to replace filters?
Dyson requires regular replaceable HEPA filters (cost not listed); Blueair’s pre‑filter is washable for up to 6 months, but the main filter still needs periodic replacement.