Dyson Purifier Hot+Cool HP2 De-NOx? delivers whole-room heating? and powerful cooling? with purified air. Advanced air purification captures 50% more NO?.² Removes odors and gases,¹ and continuously destroys formaldehyde.? The fully sealed, 3-stage filter system captures 99.97% of particles as small as 0.3 microns.³ The whole purifier, not just the filtration system, is fully sealed to HEPA H13 grade.³ Air Multiplier™ technology projects over 76 gallons per second of smooth, yet powerful airflow.? Connects to the MyDyson™ app to control and monitor air quality from anywhere, or hands-free with compatible voice services.? ¹Gas capture rates vary. ²Refers to non-living material. ³Particle challenge with DEHS oil specified in EN1822 within a chamber specified in ASTM F3150. Tested per ISO 29463. ?Tested per Dyson internal test standards for whole-room air projection (DTM108), purification coverage (TM-003711), and heating performance (DTM961). ?Requires 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. Refer to the MyDyson app for compatible voice services. ?Fan, not air conditioning unit. ?Tested to DTM-801, in fan mode, at speed 10. ?Tested to Dyson test method TM-003387. In a 3 cubic meter test chamber, at fan speed 10, at third-party test laboratory (Fraunhofer WKI), comparison against regular activated carbon performance. ?Third 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.