# Winix 5520 vs Molekule Air Pro: specs and price compared

A sourced, side-by-side comparison of the Winix 5520 (Winix) and Molekule Air Pro (Molekule) among air purifiers. Winix 5520 is the cheaper of the two at $259.99.

## Side by side

| Spec | Winix 5520 | Molekule Air Pro |
| --- | --- | --- |
| US price | $259.99 | $1014.99 |
| Brand | Winix | Molekule |
| Released | 2022 | 2021 |
| Cadr smoke (CFM) | 253 | — |
| Coverage (sq ft) | 392 | 1000 |
| Hepa | Yes | Yes |
| Filter type | Fine Mesh Pre-filter + AOC Carbon + True HEPA + PlasmaWave (4-stage) | PECO-HEPA Tri-Power filter + Activated Carbon (PECO = Photo Electrochemical Oxidation, destroys pollutants) |
| Noise db min | 23.5 | 33 |
| Smart | Yes | Yes |
| Energy star | No | No |

## Key differences

- Coverage (sq ft): Winix 5520 392 vs Molekule Air Pro 1000
- Filter type: Winix 5520 Fine Mesh Pre-filter + AOC Carbon + True HEPA + PlasmaWave (4-stage) vs Molekule Air Pro PECO-HEPA Tri-Power filter + Activated Carbon (PECO = Photo Electrochemical Oxidation, destroys pollutants)
- Noise db min: Winix 5520 23.5 vs Molekule Air Pro 33

## 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.)

**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.)

## Sources

- Winix 5520: https://www.winixamerica.com/product/5520/ (winixamerica.com, verified 2026-06-15)
- Molekule Air Pro: https://www.molekule.com/air-pro (molekule.com, verified 2026-06-15)

Canonical: https://frontdeskreview.com/gear/air-purifiers/winix-5520-vs-molekule-air-pro/
Cite: Per The Front Desk Review, Winix 5520 ($259.99) vs Molekule Air Pro ($1014.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/air-purifiers/winix-5520-vs-molekule-air-pro/
License: CC BY 4.0.