Dyson Big + Quiet Formaldehyde BP03 – Full Detailed Review
Overall Score: 90 / 100
The Dyson Big + Quiet Formaldehyde BP03 is a top-tier air purifier designed for large rooms and whole-home purification. With groundbreaking formaldehyde-destroying technology, ultra-quiet operation, and long-range airflow, this model delivers elite performance in a premium package. Despite its large size and high price, it’s one of the most advanced purifiers available in 2025.
Key Specifications
| Specification | Detail |
|---|---|
| Price | $999 USD |
| Coverage | Up to 1,076 sq ft (100 m²) |
| Filtration | HEPA H13 + Activated Carbon + Catalytic Filter (SCO) |
| Formaldehyde Removal | Catalytic conversion (permanent) |
| Airflow & Modes | 10 fan speeds + Auto + Breeze mode |
| Noise Level | 38 dB – 56 dB |
| Power Usage | 5W (Eco) – 77W (Max) |
| Dimensions | 32.7″ × 16.3″ × 17.1″ (H×W×D) |
| Weight | 26.2 lbs (11.9 kg) |
| Connectivity | MyDyson App, Alexa, Google, Siri |
| Warranty | 2 Years |
Pros and Cons
Pros
- Rapid purification with PM2.5 reduction in under 13 minutes
- Permanent catalytic destruction of formaldehyde
- Quiet operation, even at higher speeds
- Covers large spaces up to 1,000+ sq ft
- Smart sensor system with real-time LCD and app control
- Long-lasting filters (HEPA: 5 years, Carbon: 2 years)
- Elegant design with hidden wheels and magnetic remote
Cons
- Premium pricing ($999+)
- Large and heavy—needs floor space
- App offers only daily AQI history
- Initial filter cost is high (~$100+/year)
- Occasional filter stock delays
Performance & Features
The Dyson BP03 excels in real-world performance, especially in large spaces. It projects air up to 32 feet, circulates 87 liters/second, and uses its HEPA H13 filter with catalytic oxidation to remove and destroy pollutants including formaldehyde—a rare feature even among high-end purifiers.
Its Noise Level stays under 50 dB during normal use and peaks around 56 dB at max power, making it one of the quietest large-room air purifiers on the market. The Breeze Mode mimics natural airflow, ideal for gentle circulation during sleep.
Sensors monitor PM1, PM2.5, VOCs, NO2, temperature, and humidity. The color-coded LCD ring and app both provide air quality feedback in real time.
Smart Features include voice control via Alexa/Google/Siri, MyDyson app scheduling, and Auto Mode with intelligent speed adjustments based on pollution levels.
Common Complaints
- Some users report slow initial sensor response to sudden spikes
- Bulky and not easy to move around homes with carpet
- Filter availability sometimes delayed in certain regions
- App pairing may occasionally disconnect or lag
Best For
- Open-concept homes needing large coverage
- New homeowners concerned about formaldehyde from furniture
- Tech-savvy users who prefer app-based monitoring
- Allergy or asthma sufferers in large areas
Where to Buy
- Dyson.com
- Best Buy
- Amazon
- Target
- Microless
- Walmart
Final Verdict
The Dyson Big + Quiet Formaldehyde BP03 earns a 90/100 for its innovative formaldehyde removal, quiet efficiency, and large-room performance. Though it demands a steep investment and space, the purifier pays off with long filter life, elegant design, and Dyson’s signature tech experience. For buyers needing premium air quality control in expansive homes, this unit is worth the splurge.