Register your machine
You can get support that's tailored to you, owner exclusives and more when you register your machine.
Watch how to quickly get up and running with our step-by-step video guide.
Using your purifier
Get more from your purifier with the MyDyson™ app.¹ Monitor real time reports and make use of various modes as well as scheduling.
Enables you to change different functions. Curved and magnetized to store neatly on the machine.
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.
Air quality graph
Shows your air quality over the last 12 seconds, or over the last 24 hours.
Shows microscopic particles smaller than 2.5 microns – including smoke and allergens.
Shows particles smaller than 10 microns – including pollen, dust and pet dander.
Volatile Organic Compounds level
Shows gases released from sources such as aerosol sprays and air fresheners. They include benzene, household fumes and odors.
Shows oxidizing gases such as NO₂ – includes cigarette smoke, car emissions, candles and gas stoves.
Electrochemical cell precisely detects formaldehyde for the lifetime of the machine.
Works with smart voice control
Control your Dyson purifier – with your voice.²
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.
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.
Connect your Dyson machines to Siri Shortcuts and you’ll be able to control them with your voice, on your Apple device.
Some things you can say:
When you've connected your Dyson purifier to your voice assistant, you could try saying:
"Alexa, turn on my purifier"
"Hey Google, turn up the temperature"
"Hey Siri, enable Auto mode"
²Requires a compatible voice service. Voice control excludes lighting. Siri shortcuts not compatible with Dyson robot vacuums.
Google is a trademark of Google LLC.
Filter care for optimum performance.
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.
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.
Learn which filters you need for your machine, and how often you need to replace them.
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 three and a half feet 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.³ 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?
The H13 grade HEPA filter lasts up to five years, but we recommend you replace the activated carbon filter every two years. The selective catalytic oxidisation filter is permanent and never needs replacing.
Can I order a new filter through the app?
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.
Why Register? More perks.
Exclusive Savings Events
Registered owners save on future purchases. Receive up to 20% off purchases during 12 Owner Rewards Savings Events throughout the year.
First to know
Registered owners receive exclusive events and sneak peeks at our latest technology before anyone else.
Experience the latest technology in our invitation-only reviewer program.
Helpful tips to get the most out of your machine and keep it working at its best.
We don’t stop caring about our machines once they’re yours. Activating your parts and labor warranty allows us to give you a tailored, complementary, direct service for your machine. Even after your warranty has ended, we’ll still be on hand to help.
¹Requires device to run app, Wi-Fi or mobile data, Bluetooth 4.0 support, and iOS version 10 or Android version 5 (or above). Standard data and messaging rates may apply. Your mobile device must have Bluetooth 4.0 support.