Live air quality reports on the LCD screen.
The built-in LCD screen shows you which gases and particles are present in the room, right now.
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Indoor Air Quality Index (AQI)
Shows your current indoor air quality.
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Nitrogen Dioxide (NO2)
Potentially harmful gases, released by combustion. Includes cigarette smoke, candles, and gas stoves.
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Volatile Organic Compounds (VOCs)
Gases released from a wide range of sources, such as aerosol sprays and air fresheners. They include formaldehyde and benzene, household fumes and odors.
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Filter life
Shows how much filter life remains on both the sealed HEPA and Active carbon filters, so you know which one to replace, and when.
![Cooking food on a gas stove next to Dyson Pure Cool™ purifying fan](https://dyson-h.assetsadobe2.com/is/image/content/dam/dyson/products/air-treatment/pure-cool-2018/features/air-quality-pure-cool-features-stove.jpg?$responsive$)
Captures pollutants you can't see.
![Dyson Pure Cool Tower within household capturing pollutants](https://dyson-h.assetsadobe2.com/is/image/content/dam/dyson/products/air-treatment/air-quality-updates/air-quality-pure-cool-features-whole-room-NEW.jpg?$responsive$)
Whole-room purification.
Air Multiplier™ technology projects 77 gallons of smooth, powerful airflow each second, to circulate and mix purified air throughout the room. And with a choice of focused and oscillation modes, you can direct it wherever you want.
![Dyson Pure Cool Tower White Silver Oscillating around the room](https://dyson-h.assetsadobe2.com/is/image/content/dam/dyson/products/air-treatment/pure-cool-2018/features/air-quality-pure-cool-features-oscillation.jpg?$responsive$)
Purifies every corner of the room. Oscillates up to 350° to cool you wherever you want.
New 350° oscillation allows you to circulate and mix air around the whole room. With built-in and customizable settings, so you can choose where to direct air.
![Dyson Pure Cool Tower purifying the whole room](https://dyson-h.assetsadobe2.com/is/image/content/dam/dyson/products/air-treatment/pure-cool-2018/features/air-quality-pure-cool-features-diffused.jpg?$responsive$)
Backward airflow mode. Purifies without cooling you.
In backward airflow mode, the unique Dyson air valve projects air through the back of the machine, while maintaining effective purification.
![Dyson Pure Cool Tower purifying babies room at night](https://dyson-h.assetsadobe2.com/is/image/content/dam/dyson/products/air-treatment/pure-cool-2018/features/air-quality-pure-cool-features-night-mode.jpg?$responsive$)
Over 70% of people surveyed felt better rested from using the Dyson Air Purifier.*
Night-time mode continues to monitor and respond to changes in air quality with its quiet airflow settings and dimmed display.
*Based on a 2017 Dyson Sleep Survey
![Dyson pure Cool Tower filter change](https://dyson-h.assetsadobe2.com/is/image/content/dam/dyson/products/air-treatment/pure-cool-2018/features/air-quality-pure-cool-features-filter.jpg?$responsive$)
Easy filter maintenance.
Built-in reminders show when each filter needs changing. It's quick and easy to do.
¹Standard data and messaging rates may apply. Requires Wi-Fi and app-enabled device. Requires iOS version 10 or above, or Android version 5 or above. Your mobile device must have Bluetooth 4.0 support.