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Head-to-head · Best Air Purifiers

Blueair Blue Pure 311i Max vs Dyson Purifier Cool TP07

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Blueair Blue Pure 311i Max comes out ahead by a clear margin (4.1 vs 3.4). Blueair Blue Pure 311i Max is best for: Medium to large rooms where low noise, low running cost and app control matter, for buyers comfortable with an ionizer. Read the strengths below before deciding.

Blueair Blue Pure 311i Max
Higher ratedRanked #4 in Best Air Purifiers
Blueair Blue Pure 311i Max
2 sources$169.99as of Oct 16

TechGearLab's best overall air purifier (80/100) and a 3.5/5 'Good' from PCMag: a light, quiet, app- and voice-controlled purifier for medium to large rooms that cleared smoke quickly in both outlets' tests. Its HEPASilent system relies on an always-on ionizer, and PCMag notes limited air quality readings and filter options.

Strengths
  • — Removed over 80% of particles in 10 minutes and had TechGearLab's 200 sq ft lab 99% clean by 27 minutes
  • — Cleared a 110 sq ft office from a PM2.5 reading of 200 to 0 in 14 minutes in PCMag's incense test
  • — Quiet: PCMag measured 52dB on high and 33dB on low
Watch-outs
  • — The HEPASilent system uses an always-on ionizer and is not a True HEPA filter, per TechGearLab
  • — TechGearLab found the child lock is not fully childproof
  • — PCMag notes limited air quality readings (PM2.5 only, no on-device numbers) and no application-specific filter options
$169.99 · Check Price on AmazonFull review →
Dyson Purifier Cool TP07
Ranked #5 in Best Air Purifiers
Dyson Purifier Cool TP07
2 sources$548as of Oct 14

Purification and cooling in one unit is the Dyson Purifier Cool TP07's trick, using HEPA H13 filtration to capture allergens and VOCs, with smart home integration on top. The cost is high, and it suits small rooms under 99 square feet poorly, which is a problem for anyone hoping to cover a whole home.

Strengths
  • — Combines air purification and cooling fan functions in one unit
  • — Fully sealed HEPA H13 filtration captures ultrafine particles, pollen, and VOCs
  • — Integrates with smart home ecosystems including Alexa, Siri, and Google Home
Watch-outs
  • — Limited coverage area suitable only for small rooms up to 99 square feet
  • — High price point compared to standard air purifiers or fans
$548 · Check Price on AmazonFull review →

How they stack up

Blueair Blue Pure 311i Max

PCMag points out that two 311i Max units cost about the price of one Dyson Purifier Cool TP07, which adds an oscillating fan and more detailed air quality readings. TechGearLab suggests the Levoit Core 400S (the 400S-P version it tested) as the ionizer-free, family-friendly alternative that is nearly as powerful.

Dyson Purifier Cool TP07

Unlike the Coway Airmega 400S or Blueair Blue Pure 211+, the Dyson Purifier Cool TP07 uniquely combines air purification with active cooling, making it a dual-purpose device rather than a dedicated purifier. However, its coverage area is significantly smaller than the Coway's 3,120 sq. ft. capacity, and it lacks the simple one-button interface found on the Blueair model.

Specs side-by-side

SpecBlueair Blue Pure 311i MaxDyson Purifier Cool TP07
Listed CADRPollen 365 cfm, Dust 314 cfm, Smoke 283 cfm (TechGearLab)—
Rated Room SizeUp to 929 sq ft in 30 minutes (PCMag)—
FiltrationHEPASilent: pleated particle filter plus ionizer, carbon layer, washable fabric pre-filter—
Measured Weight7.3 lbs (TechGearLab)—
Dimensions19 x 12.5 x 12.5 in7.7 x 8 x 41 inches
Smart FeaturesWi-Fi app, Amazon Alexa, Google Assistant—
Replacement Filter$44.99, up to nine months (PCMag)—
Energy StarYes—
Room Coverage—99 square feet
Filtration System—HEPA H13
Weight—10.8 lbs
Power Consumption—28.9 W
Filter Lifespan—12 months
CADR—94 CFM
Noise Level—35.5–54.4 dB
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