Getting started
Watch how to quickly get up and running with our step-by-step video guide.
Using your purifier
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MyDyson™ app
Get more from your purifier with the MyDyson™ app. Monitor real time reports and make use of various modes as well as scheduling.
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Remote control
Enables you to change different functions. Curved and magnetized to store neatly on the machine.
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LCD Screen
Learn more about your machine, different modes and receive live air quality reports.
Understanding the LCD screen
Understand your air quality live reports from the LCD screen.
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Air quality graph
Shows your air quality over the last 12 seconds, or over the last 24 hours.
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PM2.5 level
Shows microscopic particles smaller than 2.5 microns – including smoke, bacteria and allergens.
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PM10 level
Shows particles smaller than 10 microns – including pollen, dust and pet dander.
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Volatile Organic Compounds level
Shows gases released from sources such as aerosol sprays and air fresheners. They include benzene, household fumes and odours.
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NO₂ level
Shows oxidising gases such as NO₂ – includes cigarette smoke, car emissions, candles and gas stoves.
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Formaldehyde level
Electrochemical cell precisely detects formaldehyde for the lifetime of the machine.
Works with smart voice control
Control your Dyson purifier – with your voice.¹
Amazon Alexa
Ask Alexa to enable the Dyson skill, to control your Dyson purifier. And set a routine that automates how your machine works with other devices in your home.
Google Assistant
Control all of your connected purifiers with Google or set a routine to automate how your machine works with other devices in your home. Just say “Hey Google” to get started.
Siri Shortcuts
Connect your Dyson machines to Siri Shortcuts and you’ll be able to control them with your voice, on your Apple device.
¹Requires a compatible voice service. Voice control excludes lighting. Siri shortcuts not compatible with Dyson robot vacuums.
Google is a trademark of Google LLC.
Maintenance
Filter care for optimum performance.
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How to replace the activated carbon filter
To keep your activated carbon filter working effectively, we recommend changing it every 2 years of use, or sooner if necessary.
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How to replace the HEPA filter
To ensure optimum air purification performance, we recommend replacing your HEPA filter every 5 years, or sooner if necessary.
Replacement filters
Learn which filters you need for your machine, and how often you need to replace them.
Manuals
Frequently asked questions
Where should I place the Dyson Purifier Big+Quiet Formaldehyde in my room?
The Dyson Purifier Big+Quiet has been designed to work from the corner of a room, at least one metre away from the wall. For optimal performance we recommend projecting air either along a wall or across the room. You can adjust the angle of projection to suit your preference.
Can I leave my Dyson air purifier on all the time?
Dyson purifiers are optimal when left switched on in auto-mode. This allows the purifier to constantly monitor your air quality, and automatically sense and capture pollutants. It adjusts the airflow speed, only purifying when needed.² The Dyson Purifier Big+Quiet range offers enhanced energy efficiency, providing nearly double the clean air delivery rate per watt versus our current generation purifiers.
Is maintenance required for the filters?
No. Some purifiers rely on you changing, washing and drying the filters each month. The time spent waiting for the filter to dry is time without a working purifier. With the Dyson Purifier Big+Quiet Formaldehyde, you don’t need to waste time washing and drying the filters. The indicator is designed to remind you to replace both filters.
How often does the filter need to be changed?
We recommend replacing your HEPA filter after using it for up to five years or sooner. The activated carbon filter should be replaced every two years or sooner if required. The app or machine will alert you when it's time to replace your filter.
Can I order a new filter through the app?
Yes, the app provides a link to the Dyson website. A user will be notified when the filter has 10% and 2% of its life remaining.
Does the LCD display stay on throughout the night?
If you're concerned by the brightness of your purifier's LCD display, consider enabling Night mode using your remote control or the MyDyson™ app. During operation, a small moon icon indicates that your purifier is on, but the main display turns off after 10 seconds to help avoid sleep disturbance.
Can multiple app users share the same machine?
Yes, an unlimited number of app users can control a single machine. The machine will only ever choose the most recent update. For example, if more than one person is updating the scheduling, the most recent change will be the one the machine progresses with.
Does the sensor on the product ever need to be reset?
The VOC sensor is very sensitive and can sometimes be contaminated by strong solvents. The sensor will recover naturally over a couple of days. To immediately reset the sensor, remove power to the machine at the plug for 30 seconds and then reapply it. This will cause the sensor to perform a short recalibration.
The Dyson warranty
1The ability of purifying a large room up to 100m2 (10m*10m) proven from a Computational Fluid Dynamics (CFD) modelling, with the purifier placed in a corner of the room running at the maximum flow and horizontal projection reaching 10 metres to fully mix the room. The projection distance was measured from internal flow reach testing under the maximum directional airflow. The actual performance in real life condition may vary.
2Tested to JEM 1467 (acetic acid, acetaldehyde, ammonia), GB/T18801 (formaldehyde, benzene) and DTM-003282 (NO2). Gas capture rates vary.
3Compared to adsorption by the standard carbon filter in Dyson Purifier Big+Quiet Formaldehyde (BP03).
4Third 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.
5Particle challenge by DEHS oil specified in EN1822 within a chamber specified in ASTM F3150. Tested in Max Mode at IBR US, for whole machine efficiency above 99.95%.
6Tested on Korean BBQ, grilled salmon, cat urine, tobacco smoke and garbage odours.
7App 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.
8Levels defined by Dyson based on scientific literature. Ventilation alert when CO2 levels are 1500ppm or above.
9In maximum setting. Tested for air projection (DTM 801) and purification coverage in a 81m3 room (TM-003711).
10In automode.
11Vs. TP09
12Refer to the MyDyson™ app for compatible smart home devices and voice services.
²In automode.