About
A purifier built for big rooms and quiet, all-day performance. The Dyson Purifier Big+Quiet Formaldehyde BP04 pairs a sculpted dome with cone aerodynamic projection to move over 21 gallons of purified air per second, cooling gently while scrubbing the space.
HEPA H13, K‑carbon, and SCO filtration run inside a fully sealed chassis so captured particles and gases stay put, including formaldehyde and NO2 from cooking or traffic. The solid‑state formaldehyde sensor is the standout: precise, permanent, and cross‑checked every second alongside PM, NO2, and CO2 sensors that trigger Auto mode without fuss.
Design is minimal yet purposeful. The Prussian blue and gold finish feels premium on a unit that looks more furniture than appliance, with adjustable airflow angles at 0, 25, and 50 degrees and a Breeze mode that mimics outdoor air. It’s impressively quiet; Night mode is up to 50 percent quieter, and there’s a Sleep timer for set‑and‑forget use.
For indoor air quality, home office, and large living spaces, this is a polished, high‑performance air purifier that respects both design and data.
