The latest generation 3-in-1 Dyson Purifier Humidify+Cool Formaldehyde™ combines intelligent sensing with an advanced filtration and humidification system to purify, humidify, and cool you. Three phases of purification sit within a fully sealed filtration and airflow system. So what goes inside, stays inside. A solid-state formaldehyde sensor and a unique catalytic filter detect and continuously destroy formaldehyde¹, a HEPA filter captures 99.97% of particles 0.3 microns in size. Then powerful Air Multiplier™ technology projects purified, hygienically humidified air throughout the room.² For a healthier, more comfortable environment.¹Third party full machine testing based on GB/T 18801-2015. Results may vary in practice.²Tested for purification coverage in an 81m³ chamber. Tested for humidification coverage in a 41m³ chamber.³Tested with particle challenge per EN1822 in a chamber per ASTMF3150. Tested at maximum fan speed.4Requires device to run app, 2.4GHz or 5GHz Wi-Fi connection or mobile data, and Bluetooth® 4.0 support. For app compatibility, please search for ‘MyDyson’ on the iOS App Store or the Google Play Store. Standard data and messaging rates may apply. Voice control requires a compatible voice service.5At fan speed 1.