Blueair
Blueair Blue Pure 211i Max
$349.99Cheaper
Released 2022
Best Air Purifiers · head-to-head
Blueair Blue Pure 211i Max vs Molekule Air Pro
A sourced, side-by-side comparison. Blueair Blue Pure 211i Max is cheaper at $349.99. Every spec and price links to its source.
Molekule
Molekule Air Pro
$1014.99
Released 2021
Which is better: the Blueair Blue Pure 211i Max or Molekule Air Pro?
On the specs we track, they're closely matched. The Blueair Blue Pure 211i Max is the cheaper at $349.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Blueair Blue Pure 211i Max | Molekule Air Pro |
|---|---|---|
| US price | $349.99 | $1014.99 |
| Brand | Blueair | Molekule |
| Released | 2022 | 2021 |
| Cadr smoke (CFM) | 443 | — |
| Coverage (sq ft) | 674 | 1000 |
| Hepa | Yes | Yes |
| Filter type | HEPASilent dual filtration (mechanical + electrostatic) + Activated Carbon, 4-layer | PECO-HEPA Tri-Power filter + Activated Carbon (PECO = Photo Electrochemical Oxidation, destroys pollutants) |
| Noise db min | 23 | 33 |
| Smart | Yes | Yes |
| Energy star | Yes | No |
| Release | 2022 | 2021 |
Sources — Blueair Blue Pure 211i Max: blueair.com (verified 2026-06-15). Molekule Air Pro: molekule.com (verified 2026-06-15).
What's the difference between the Blueair Blue Pure 211i Max and Molekule Air Pro?
Where the two actually differ on the specs we track (4 of 7). Matching specs are omitted.
- Coverage (sq ft): Blueair Blue Pure 211i Max 674 vs Molekule Air Pro 1000
- Filter type: Blueair Blue Pure 211i Max HEPASilent dual filtration (mechanical + electrostatic) + Activated Carbon, 4-layer vs Molekule Air Pro PECO-HEPA Tri-Power filter + Activated Carbon (PECO = Photo Electrochemical Oxidation, destroys pollutants)
- Noise db min: Blueair Blue Pure 211i Max 23 vs Molekule Air Pro 33
- Energy star: Blueair Blue Pure 211i Max true vs Molekule Air Pro false
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Blueair Blue Pure 211i Max
Only one whitelisted tester, Wirecutter, published hands-on measured results for this exact model, naming it their large-room upgrade pick. Wirecutter found it a stellar, quiet, energy-efficient large-room performer (>99.9% smoke reduction), with a durability caveat on the washable fabric cover. (1 sourced review, 1 lab-tested.)
Praised: Stellar large-room particle/smoke reduction (>99.9% in the 30-minute test); Very quiet for its power (<=41 dBA on its four lower speeds); Energy efficient (41 W max; 11-18 W in normal everyday use).
Flagged: Fabric cover looks shaggy over time and lost elasticity after a few washes, needing replacement; Shorter filter replacement cycle (6-9 months vs a typical year); Relatively high price and overkill for small-to-medium rooms.
Molekule Air Pro
Three hands-on testers bench-tested the Molekule Air Pro — Tom's Guide (July 2025), Reviewed/USA Today (Feb 2024) and TechRadar (Sept 2024) — and agree it filters effectively, surfaces detailed multi-pollutant air-quality data on its screen and companion app, and looks premium, but is loud at high fan speeds and very expensive with costly proprietary filters. All three measured high-speed noise (65-78 dB) and confirm the ~$1,000+ price plus roughly $175 twice-yearly filters. FDA Class II medical clearance is confirmed by Reviewed and TechRadar. (3 sourced reviews, 3 lab-tested.)
Praised: Strong, effective filtration; FDA Class II medical clearance; Detailed multi-pollutant air-quality sensing/data via screen and app (VOCs, PM, CO2); Premium, striking aluminum design.
Flagged: Very expensive purchase plus recurring ~$175 filter cost; Loud at high fan speeds (65-78 dB measured across sources); Large, heavy and awkward to carry between rooms.