# Winix 5520 vs Alen BreatheSmart 75i: specs and price compared

A sourced, side-by-side comparison of the Winix 5520 (Winix) and Alen BreatheSmart 75i (Alen) among air purifiers. Winix 5520 is the cheaper of the two at $199.99.

## Side by side

| Spec | Winix 5520 | Alen BreatheSmart 75i |
| --- | --- | --- |
| US price | $199.99 | $799 |
| Brand | Winix | Alen |
| Released | 2022 | — |
| Cadr smoke (CFM) | 253 | — |
| Coverage (sq ft) | 392 | 1400 |
| Hepa | Yes | Yes |
| Filter type | Fine Mesh Pre-filter + AOC Carbon + True HEPA + PlasmaWave (4-stage) | Advanced Particle filter + Medical-grade True HEPA (H13) + Ionizer (switchable); optional Carbon layer (Fresh/Ultimate filters) |
| Noise db min | 23.5 | 25 |
| Smart | Yes | Yes |
| Energy star | No | Yes |

## Key differences

- Coverage (sq ft): Winix 5520 392 vs Alen BreatheSmart 75i 1400
- Filter type: Winix 5520 Fine Mesh Pre-filter + AOC Carbon + True HEPA + PlasmaWave (4-stage) vs Alen BreatheSmart 75i Advanced Particle filter + Medical-grade True HEPA (H13) + Ionizer (switchable); optional Carbon layer (Fresh/Ultimate filters)
- Noise db min: Winix 5520 23.5 vs Alen BreatheSmart 75i 25
- Energy star: Winix 5520 No vs Alen BreatheSmart 75i Yes

## What reviewers say

**Winix 5520** — Only one whitelisted tester (Wirecutter) hands-on tested the exact Winix 5520, and only in its dismissed-competition section: a capable purifier that tested worse and louder than Coway's Mighty 2, with a dark, monolithic form that stands out in most rooms, a display that shuts off only on the lowest and least effective fan speed, and an ionizer that reactivates on every power-on. No lab numbers were published for this model. (1 sourced review.)

**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.)

## Sources

- Winix 5520: https://www.winixamerica.com/product/5520/ (winixamerica.com, verified 2026-06-15)
- Alen BreatheSmart 75i: https://alen.com/products/alen-breathesmart-75i-air-purifier (alen.com, verified 2026-07-07)

Canonical: https://frontdeskreview.com/gear/air-purifiers/winix-5520-vs-alen-breathesmart-75i/
Cite: Per The Front Desk Review, Winix 5520 ($199.99) vs Alen BreatheSmart 75i ($799) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/air-purifiers/winix-5520-vs-alen-breathesmart-75i/
License: CC BY 4.0.