# Rabbit Air BioGS 2.0 vs Dyson Purifier Big+Quiet Formaldehyde BP04: specs and price compared

A sourced, side-by-side comparison of the Rabbit Air BioGS 2.0 (Rabbit Air) and Dyson Purifier Big+Quiet Formaldehyde BP04 (Dyson) among air purifiers. Rabbit Air BioGS 2.0 is the cheaper of the two at $369.95.

## Side by side

| Spec | Rabbit Air BioGS 2.0 | Dyson Purifier Big+Quiet Formaldehyde BP04 |
| --- | --- | --- |
| US price | $369.95 | $1199.99 |
| Brand | Rabbit Air | Dyson |
| Released | 2017 | 2023 |
| Cadr smoke (CFM) | 136 | — |
| Coverage (sq ft) | 550 | — |
| Hepa | Yes | Yes |
| Filter type | Pre-filter + BioGS HEPA + Dual Hive AC Charcoal + Negative Ion Generator (4-stage) | 360° HEPA H13 + K-Carbon filter + SCO (Selective Catalytic Oxidization) formaldehyde filter |
| Noise db min | 22.8 | — |
| Smart | No | Yes |
| Energy star | No | No |

## Key differences

- Filter type: Rabbit Air BioGS 2.0 Pre-filter + BioGS HEPA + Dual Hive AC Charcoal + Negative Ion Generator (4-stage) vs Dyson Purifier Big+Quiet Formaldehyde BP04 360° HEPA H13 + K-Carbon filter + SCO (Selective Catalytic Oxidization) formaldehyde filter
- Smart: Rabbit Air BioGS 2.0 No vs Dyson Purifier Big+Quiet Formaldehyde BP04 Yes

## What reviewers say

**Rabbit Air BioGS 2.0** — Only one whitelisted tester, Tom's Guide, hands-on reviewed this exact model. It calls the BioGS 2.0 a quiet, inexpensive purifier that cleans a mid-sized room well, but flags weak airflow and the absence of WiFi or an app. Consensus rests on a single source. (1 sourced review.)

**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.)

## Sources

- Rabbit Air BioGS 2.0: https://www.rabbitair.com/pages/choose-your-air-purifier (rabbitair.com, verified 2026-06-15)
- 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)

Canonical: https://frontdeskreview.com/gear/air-purifiers/rabbit-air-biogs-2-vs-dyson-purifier-big-quiet-bp04/
Cite: Per The Front Desk Review, Rabbit Air BioGS 2.0 ($369.95) vs Dyson Purifier Big+Quiet Formaldehyde BP04 ($1199.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/air-purifiers/rabbit-air-biogs-2-vs-dyson-purifier-big-quiet-bp04/
License: CC BY 4.0.