# Dyson Purifier Big+Quiet Formaldehyde BP04 vs Molekule Air Pro: specs and price compared

A sourced, side-by-side comparison of the Dyson Purifier Big+Quiet Formaldehyde BP04 (Dyson) and Molekule Air Pro (Molekule) among air purifiers. Molekule Air Pro is the cheaper of the two at $1014.99.

## Side by side

| Spec | Dyson Purifier Big+Quiet Formaldehyde BP04 | Molekule Air Pro |
| --- | --- | --- |
| US price | $1199.99 | $1014.99 |
| Brand | Dyson | Molekule |
| Released | 2023 | 2021 |
| Cadr smoke (CFM) | — | — |
| Coverage (sq ft) | — | 1000 |
| Hepa | Yes | Yes |
| Filter type | 360° HEPA H13 + K-Carbon filter + SCO (Selective Catalytic Oxidization) formaldehyde filter | PECO-HEPA Tri-Power filter + Activated Carbon (PECO = Photo Electrochemical Oxidation, destroys pollutants) |
| Noise db min | — | 33 |
| Smart | Yes | Yes |
| Energy star | No | No |

## Key differences

- Filter type: Dyson Purifier Big+Quiet Formaldehyde BP04 360° HEPA H13 + K-Carbon filter + SCO (Selective Catalytic Oxidization) formaldehyde filter vs Molekule Air Pro PECO-HEPA Tri-Power filter + Activated Carbon (PECO = Photo Electrochemical Oxidation, destroys pollutants)

## What reviewers say

**Dyson Purifier Big+Quiet Formaldehyde BP04** — Three whitelisted outlets (TechRadar, Reviewed/USA Today, TechHive) hands-on or lab tested the Dyson Purifier Big+Quiet Formaldehyde; TechRadar and Reviewed covered the higher CO2-sensor trim (aligned with BP04) while TechHive tested the base Formaldehyde unit. All quotes and measured values below were verified as literal substrings of the fetched pages. All rate it a powerful, genuinely quiet large-room purifier with standout formaldehyde/VOC filtration and rare five-year HEPA H13 filter life, but flag its very high price and bulk. Reviewed's lab pegs particle CADR at only ~200 CFM (smoke) — good, not class-leading — and Dyson publishes no official CADR. (3 sourced reviews.)

**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

- Dyson Purifier Big+Quiet Formaldehyde BP04: https://www.dyson.com/air-treatment/air-purifiers/big-quiet-formaldehyde/prussian-blue-gold-bp04 (dyson.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/dyson-purifier-big-quiet-bp04-vs-molekule-air-pro/
Cite: Per The Front Desk Review, Dyson Purifier Big+Quiet Formaldehyde BP04 ($1199.99) vs Molekule Air Pro ($1014.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/air-purifiers/dyson-purifier-big-quiet-bp04-vs-molekule-air-pro/
License: CC BY 4.0.