Levoit
Levoit Core 300S
$149.99Cheaper
Released 2021
Best Air Purifiers · head-to-head
Levoit Core 300S vs Blueair Blue Pure 211i Max
A sourced, side-by-side comparison. Levoit Core 300S is cheaper at $149.99. Every spec and price links to its source.
Blueair
Blueair Blue Pure 211i Max
$349.99
Released 2022
Which is better: the Levoit Core 300S or Blueair Blue Pure 211i Max?
The Blueair Blue Pure 211i Max wins 1 of the 1 specs we compare head to head; the other wins 0. The Levoit Core 300S is the cheaper at $149.99. Get the Blueair Blue Pure 211i Max for the stronger spec sheet, the Levoit Core 300S to spend less.
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Key specs, head to head
The numbers that decide it, drawn to scale — longer bar wins, the accent bar is the stronger figure.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Levoit Core 300S | Blueair Blue Pure 211i Max |
|---|---|---|
| US price | $149.99 | $349.99 |
| Brand | Levoit | Blueair |
| Released | 2021 | 2022 |
| Cadr smoke (CFM) | 141 | 443 |
| Coverage (sq ft) | 219 | 674 |
| Hepa | Yes | Yes |
| Filter type | Pre-filter + True HEPA + Activated Carbon (3-stage) | HEPASilent dual filtration (mechanical + electrostatic) + Activated Carbon, 4-layer |
| Noise db min | 22 | 23 |
| Smart | Yes | Yes |
| Energy star | No | Yes |
| Release | 2021 | 2022 |
Sources — Levoit Core 300S: levoit.com (verified 2026-06-15). Blueair Blue Pure 211i Max: blueair.com (verified 2026-06-15).
What's the difference between the Levoit Core 300S and Blueair Blue Pure 211i Max?
Where the two actually differ on the specs we track (5 of 7). Matching specs are omitted.
- Cadr smoke (CFM): Levoit Core 300S 141 vs Blueair Blue Pure 211i Max 443
- Coverage (sq ft): Levoit Core 300S 219 vs Blueair Blue Pure 211i Max 674
- Filter type: Levoit Core 300S Pre-filter + True HEPA + Activated Carbon (3-stage) vs Blueair Blue Pure 211i Max HEPASilent dual filtration (mechanical + electrostatic) + Activated Carbon, 4-layer
- Noise db min: Levoit Core 300S 22 vs Blueair Blue Pure 211i Max 23
- Energy star: Levoit Core 300S false vs Blueair Blue Pure 211i Max true
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Levoit Core 300S
Two whitelisted hands-on testers reviewed this exact model: TechRadar (2023) and Tom's Guide (2025). Both measured it as genuinely quiet (60dB max at high speed) and praised its compact, low-cost, easy-to-set-up design. Both flagged sluggish, sometimes absent sensor response to sudden air-quality changes, making it better for steady background use than reactive cleanup. (2 sourced reviews, 2 lab-tested.)
Praised: Quiet operation overall; both measured 60dB max at high speed; Compact, lightweight, unobtrusive design that sets up in about 5 minutes; Strong value and smart features for a budget/mid-range price.
Flagged: Slow or missing sensor response to sudden air-quality changes; No replacement filters included; filters must be bought separately; App is basic and adds little beyond the on-unit controls.
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.