DysonBigQuiet Formaldehyde BP04 Air Purifier, Prussian Blue/Gold

Dyson's quietest, most powerful and advanced air purifier.1 Absorbs 3x more NO22. Destroys formaldehyde3. Automatically senses CO2. Powerfully cools you.4

Powerful projection to cool you down4

Cone aerodynamic projection delivers over 22 gallons of purified air per second. Adjust the angle of airflow between 0°, 25° or 50°, or mimic the feeling of refreshing air indoors using Breeze mode.

Dyson's most advanced air purification

Purifies any room - including large, open-plan spaces5. Captures pollutants, gases6, odours and allergens including formaldehyde3 and 3x more NO2.2

Dyson's most advanced suite of sensors

A suite of sensors interact with Dyson's unique algorithm, cross-checking pollution data every second and reporting live results on the LCD screen or within the MyDysonTM app.7

Dyson's most advanced filtration system

HEPA H13, K-carbon and catalytic oxidisation filtration capture 99.95% of pollutants as small as 0.1 microns6, removing odours and gases including VOCs8. Continuously destroying formaldehyde3. And absorbing 50% more NO2 – a common and potentially harmful pollutant.2

Fully-sealed to HEPA H13 standard

In Dyson's latest purifiers, it’s not just the filter that meets HEPA H13 standard, it’s the machine. So what goes inside the machine, stays inside.8

Smart technology. Control through the MyDysonTM app or with voice control.

Using the MyDysonTM app lets you see which pollutants have been captured, set schedules and more. Control hands-free, using compatible voice services such as Amazon Alexa, Google Assistant or Siri.7

Plus

• Automatic sensing. In auto mode, the Purifier Big+Quiet Formaldehyde reacts automatically to detect, track and remove household pollutants, only using energy when needed
• A CO2 sensor which reports and alerts you when CO₂ levels are harmfully high
• Acoustically engineered to produce less noise. Night mode is 50% quieter than any other Dyson purifier
• A sleep timer so you can set your purifier fan to turn off at preset intervals, from 15 minutes to 9 hours
• A filter, which lasts up to 11 years9. Remove and dispose in one click
• A curved and magnetised remote control to store neatly on the side of the machine
• Easy to manoeuvre. Discreet, hidden wheels designed for hard surfaces let you easily move your machine around the room
• Bladeless, safe and easy to clean. No fast-spinning blades. Easy to clean
• Easy maintenance. Changing the filter is quick and easy. The machine’s LCD screen and MyDysonTM app notifies you when it needs to be replaced

1 Dyson Purifier Big+Quiet Formaldehyde (BP04) compared to other Dyson purifier machines.

2 Compared to adsorption by the standard carbon filter in Dyson Purifier Big+Quiet Formaldehyde (BP03).

3 Third party full machine testing based on GB/T 18801-2022 formaldehyde cumulative clean mass testing with continuous injection until plateau of formaldehyde CADR is achieved. Results may vary in practice.

4 Fan not air-conditioning unit.

5 Testing for PM2.5 purification completed in a large testing chamber following relevant Dyson testing methods. Results may vary in practice.

6 Tested for filtration efficiency at 0.1 microns (EN1822, ISO29364). Gas capture rates may vary.

7 App functionality may vary per market. Requires Wi-Fi and app enabled device. Standard data and messaging rates may apply. Requires iOS version 10 or above, or Android version 5 or above. Your mobile device must have Bluetooth 4.0 support.

8 Tested to JEM 1467 (acetic acid, acetaldehyde, ammonia), GB/T18801-2022 (formaldehyde, benzene) and DTM-003282 (NO2). Capture rates vary. Tested for filtration efficiency at 0.1 microns (EN1822), air projection (DTM801), purification coverage in a 81m3 room (TM-003711) and heating performance in a 35m3 room (DTM 961).