Dyson Purifier Big+Quiet Formaldehyde BP04 Air Purifier – Prussian Blue/Gold

The Dyson Purifier Big+Quiet Formaldehyde BP04 is made for large rooms and open-plan spaces of up to 100 m². Its cone aerodynamics project up to 87 litres of purified air every second, and the airflow angle can be adjusted so a cooling stream reaches you exactly where you want it.

Filtration is to HEPA H13 standard, capturing 99.95% of pollutants as small as 0.1 microns. The filter absorbs three times more nitrogen dioxide, and formaldehyde is continuously destroyed. Sensors keep track of pollution and carbon dioxide, showing levels on the LCD screen and in the MyDyson app, with an alert when CO2 rises to harmful levels. Automatic sensing means the machine only uses energy when it needs to.

Acoustic engineering makes it 50% quieter than other Dyson purifiers, at 56 dB on the highest of its 10 speeds. Night mode and a sleep timer adjustable from 15 minutes to 9 hours help in the evening. Control it with the remote, the app, or by voice through Alexa or Google Assistant. Finished in Prussian blue and gold, it suits busy family homes, open-plan kitchens and large living areas.