HushJet™ Big+Quiet Cool Pure+ Formaldehyde air purifier (Steel Violet/Deep Bronze)
Powered by HushJet™ projection– delivering our quietest, most powerful purifier
Purifies multiple rooms at once.¹ Engineered airflow projection is designed to move purified air beyond a single room. Powerful purification driven by a CADR of 42,377ft³/hr, for up to 916ft² room coverage.²
Powered by HushJet™ projection– our quietest, most powerful purifier.
Quiet, powerful performance
- HushJet™ silencer controls airflow to reduce turbulence and improve projection. Delivering powerful air purification, as quiet as a whisper at only 24dB in Sleep mode.
- Engineered for high performance without disruption, even at full power. Generating up to 88 gal/s of purified airflow.
- Only 51dB at maximum power.
Whole-room and multi-room purification¹
- Projects purified air across the whole room and into connected spaces.¹ Driven by a CADR of 42,377ft³/hr.
- An integrated sensor system detects pollutants to purify the whole room.¹
- Oscillation up to 350° helps distribute air evenly to every corner.
- Horizontally angled neck projects purified air far into the room, for whole-room circulation.¹
Long-range airflow and fast cleaning
- High-flow, low-pressure compressor projects a smooth jet of air up to 65 ft.³
- Horizontal HushJet™ projection purifies large and connected spaces in half the time.⁴
- Cleans large spaces quickly.
Advanced 3-stage filtration
- Electrostatic particulate filter attracts and traps 99.999% of microscopic pollutants down to 0.01 microns.⁵
- Formaldehyde destructive layer breaks down and permanently destroys formaldehyde gas.⁶
- Activated carbon filter removes gases, odors, and VOCs.⁶
Intelligent sensing and automatic purification
- Intelligent sensors detect pollutants in real time for precise air quality monitoring.
- Provides a complete, real-time picture of indoor air quality on the LCD display and MyDyson™ app.⁹
- Auto mode balances performance and efficiency without manual input for optimized energy performance.
Engineered for convenience and efficiency
- Motorized nozzle with forward projection for purification and cooling or upward flow for purification only.
- Sleep mode dims display brightness for night-time comfort.
- Use in conjunction with air conditioning to help circulate cold air around the room.
Easy maintenance
- Up to 18 months filter life for both particulate and carbon filters.¹¹
Smart control and connectivity
- Smart home enabled and control it hands-free with compatible voice services.⁹
- Wi-Fi connectivity for remote access.
- Monitor and control air quality using the MyDyson™ app.⁹
Specifications
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Weight
31 lb
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Sound level (Max)
51 Decibel
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Sound level (Quiet Mode)
24 Decibel
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Power Watt (Fan mode)
107 W
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Oscillation/Angle
350 degrees
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Cord length
6 ft
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Product diameter (skirt)
14.5 in
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Product diameter (shrouds)
14.5 in
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Room coverage
916sqft
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Filter life
18 months filter life
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Height
38.3 in
In the box
Dyson HushJet™ Big+Quiet Cool Pure+ Formaldehyde
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360° Combi Electrostatic + Activated Carbon Formaldehyde Filter
Advanced 3-stage filtration system captures particles, removes gases¹ and destroys formaldehyde, targeting pollutants such as dust, odours, and allergens.
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HushJet™ Big+Quiet Remote control (Violet)
Curved and magnetized to store neatly on the machine.
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CADR of 42,377 ft³/hr
High CADR performance, powerful airflow projection and intelligent sensing maintain cleaner air.
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Total airflow of 88 gal/s
Shapes airflow to reduce turbulence while maintaining strong air projection and purification capacity.
Why Purify
Wellbeing starts with the air around you
Pollutants affect how you feel, sleep and live – so HushJet™ projection tackles them all. Capturing particles, removing gases and odors⁶, and projecting purified air quickly and quietly. It continuously circulates and refilters the air, helping create cleaner, more comfortable days.
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Tackles allergens and pet dander
Air carries pollen, dust and pet dander. HushJet™ Big+Quiet purifier reduces your exposure to allergens, for a healthier home for you and your family.
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Supports sleep comfort
Invisible pollutants from outside traffic and burning can enter your home. HushJet™ projection is engineered to capture them – delivering powerful purification that’s as quiet as a whisper in Sleep mode.
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Removes pollutants from everyday living
Cosmetics, new furniture and building materials can release pollutants. Three-stage HushJet™ filtration removes ultra-fine particles, destroys formaldehyde, and captures odors emitted,⁶ creating a comfortable home environment.
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Captures odors⁶
HushJet™ Big+Quiet purifier tackles everyday stubborn household odors, including pet and cooking odors, plus tobacco smoke.⁶
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Electrostatic particulate filter
Charged fibres attract and trap particles like magnets, capturing ultrafine pollutants down to 0.01 microns.⁵ It removes dust, pollen and allergens efficiently while maintaining strong airflow and performance.
Grass, tree, and flower pollen (PM10)
Fireplace and candle smoke (PM2.5)
Home dampness (PM10)
Exhaust fumes (PM2.5)
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Formaldehyde destructive layer
Breaks down formaldehyde at a molecular level, rather than storing it. This ensures harmful gases are permanently destroyed, not released back into the air.
Pressed wood (MDF, plywood, chipboard)
Furniture (especially flat-pack)
Paints, varnishes and glues
Gas appliances and smoke (cooking, candles)
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Activated carbon layer
Targets gases and odors⁶ that particulate filters cannot capture. Its porous structure absorbs volatile organic compounds (VOCs), smoke and household smells, helping to clean the air beyond visible particles.
Pet or food waste odors (PM2.5)
Cigarette smoke (PM2.5)
Nail polish remover (PM2.5)
Vinyl flooring and shower curtains (PM2.5)
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Electrostatic filters
Electrostatically charged filter material attracts and traps microscopic particles, without restricting airflow. Delivering HEPA-level performance – with lower energy consumption and quiet operation.
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HEPA filters
Some HEPA filter membranes can quickly clog with microscopic dust, restricting airflow. This can reduce purification effectiveness and increase noise and maintenance. It’s why HEPA isn’t always the best filtration solution.
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App control
Remotely control airflow speed, Auto mode, Sleep mode and other settings – to tailor your indoor environment.
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Smart home enabled
Connects with Apple Home, Alexa, Google Home and Siri Shortcuts for effortless, reliable smart home control.
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Filter alerts
Tracks filter life on the LCD screen and MyDyson™ app – so you can replace non-washable filters at the right time.
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Real-time data
Keep up with the conditions in your home. With Auto mode on, your purifier adjusts to air quality changes and removes pollutants automatically.
Additional features
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Auto mode
Constantly monitors your air quality, automatically adjusting airflow to save energy – purifying only when it’s needed.
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LCD screen & remote control
View the air quality your machine detects and responds to, minute by minute. The remote control lets you adjust airflow, oscillation and settings.
Frequently asked questions
Yes. It’s designed to purify multiple rooms at once, projecting purified air through connected spaces.¹
It provides purification and personal cooling, projecting a jet of purified, cooling airflow when required.
The formaldehyde destructive layer breaks down formaldehyde gas into harmless components, so it doesn’t need replacing.⁶
Yes. Sleep mode enables ultra-quiet purification, helping maintain cleaner air while you sleep.
With 350° oscillation and a high-flow, low-pressure compressor, purified air is projected to reach every corner of the room quickly and quietly.
You can control and monitor air quality using the MyDyson™ app⁹ or the included remote. The LCD screen displays real-time indoor air quality.
Yes. It supports hands-free control with compatible voice services, with Wi-Fi connectivity.⁹
Yes. Automatic sensing continuously monitors indoor air quality and adjusts purification performance as needed.
It’s engineered for large rooms and multi-room environments, making it ideal for open-plan and connected living spaces.¹
Yes. The activated carbon filter traps odors, gases, VOCs and household fumes.⁶
Explore Air treatment
¹ Dyson simulation based on two rooms connected by an open door. Validated with physical testing. Actual performance may vary.
² Based on 1ACH.
³ Based on Dyson simulation validated with physical testing. Actual performance may vary.
⁴ Versus vertical projection design.
⁵ Tested to Korea Air Cleaning Association standard SPS-KACA-002-132 (modified) in a 30m³ chamber, under controlled conditions. Actual performance may vary.
⁶ Gas capture rates vary.
⁹ Requires device to run app, 2.4GHz or 5GHz Wi-Fi connection or mobile data, and Bluetooth 4.0 support. For app and voice services compatibility, please search for ‘MyDyson’ on the iOS App Store or the Google Play Store. Standard data and messaging rates may apply.
Apple, the Apple logo, and Siri are trademarks of Apple Inc. App Store is a service mark of Apple Inc.
Google Play, the Google Play logo, Google Assistant are trademarks of Google LLC.
The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Dyson is under license.
¹⁰Fan; not air conditioning unit.
¹¹ Based on 12 hours use per day. Filter life varies according to pollution levels.
¹³Refers to non-living material.