Levoit
Levoit Core 300S
$149.99Cheaper
Released 2021
Best Air Purifiers · head-to-head
Levoit Core 300S vs Alen BreatheSmart 75i
A sourced, side-by-side comparison. Levoit Core 300S is cheaper at $149.99. Every spec and price links to its source.
Alen
Alen BreatheSmart 75i
$799
Which is better: the Levoit Core 300S or Alen BreatheSmart 75i?
On the specs we track, they're closely matched. The Levoit Core 300S is the cheaper at $149.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Levoit Core 300S | Alen BreatheSmart 75i |
|---|---|---|
| US price | $149.99 | $799 |
| Brand | Levoit | Alen |
| Released | 2021 | — |
| Cadr smoke (CFM) | 141 | — |
| Coverage (sq ft) | 219 | 1400 |
| Hepa | Yes | Yes |
| Filter type | Pre-filter + True HEPA + Activated Carbon (3-stage) | Advanced Particle filter + Medical-grade True HEPA (H13) + Ionizer (switchable); optional Carbon layer (Fresh/Ultimate filters) |
| Noise db min | 22 | 25 |
| Smart | Yes | Yes |
| Energy star | No | Yes |
| Release | 2021 | — |
Sources — Levoit Core 300S: levoit.com (verified 2026-06-15). Alen BreatheSmart 75i: alen.com (verified 2026-07-07).
What's the difference between the Levoit Core 300S and Alen BreatheSmart 75i?
Where the two actually differ on the specs we track (4 of 7). Matching specs are omitted.
- Coverage (sq ft): Levoit Core 300S 219 vs Alen BreatheSmart 75i 1400
- Filter type: Levoit Core 300S Pre-filter + True HEPA + Activated Carbon (3-stage) vs Alen BreatheSmart 75i Advanced Particle filter + Medical-grade True HEPA (H13) + Ionizer (switchable); optional Carbon layer (Fresh/Ultimate filters)
- Noise db min: Levoit Core 300S 22 vs Alen BreatheSmart 75i 25
- Energy star: Levoit Core 300S false vs Alen BreatheSmart 75i 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.
Alen BreatheSmart 75i
Two whitelisted hands-on reviews (TechHive 2023, TechRadar 2024) cover this exact model. Both are qualitative with no lab-measured numbers. Both praise the powerful airflow for very large rooms (up to ~1,300 sq ft), the swappable colored front panels, and simple onboard controls that work without the app. Both flag the high price, being overkill for small spaces, loud higher/auto fan speeds, bulk, and an app that is hard to find or unintuitive. They split sharply on setup and framing. (2 sourced reviews.)
Praised: Powerful airflow suited to very large rooms (up to ~1,300 sq ft); Swappable colored front panels to match decor; Simple onboard controls, usable without the app.
Flagged: Very expensive and overkill for small spaces; Gets loud at higher/auto fan speeds; Large, bulky footprint.