The only purifier, heater & fan to clean a whole room properly.To simultaneously purify and heat a whole room properly, the Dyson Pure Hot + Cool™ HEPA Air Purifier, Heater & Fan goes beyond standard tests by automatically sensing pollution, capturing ultrafine pollutants, and projecting purified and heated air using Air Multiplier™ technology. It is the only HEPA Air Purifier, Heater & Fan designed and tested to this.(1)• SensesAutomatically detects airborne particles and gases, then diagnoses and reports them in real time.• CapturesActivated carbon filters remove gases. Sealed HEPA filters capture 99.97% of particle pollution such as small as 0.3 microns.• ProjectsOnly the new Dyson purifier fan heaters have Air Multiplier™ technology and 350° oscillation, to project air around the whole room.(2)• Heats in winterWith long-range, purified heat projection, it's quick to heat the whole room evenly.(2)• Cools you in summerIn warmer weather, a powerful stream of purified airflow can cool you down.• Real data, real timeMonitor your air quality with the Dyson Link app.(3)• Backwards Airflow modePurified air is diverted through the back of the machine. To purify, without cooling you.(4)• Night-time modeMonitors and purifies using the quiet settings, with its LCD screen dimmed.• Oscillates up to 350˚Adjustable oscillation angle from 45˚ to 350˚, to project purified air around the whole room.(2)• Remote controlCurved and magnetized to store neatly on top of the machine.• Quiet Mark accreditationAwarded for improved sound and quality.• Certified asthma and allergy friendly™(5)Whole machine HEPA filtration. Expels air cleaner than the air you breathe.(1)The standard purification and heating performance tests are AHAM AC1-2015 and IEC 60675 respectively. Dyson goes beyond these, by testing filtration efficiency, air projection (DTM801), purification coverage in a 2860ft³ room with multiple sensors (TM-003711) and heating performance in a 1236ft³ room with multiple sensors (DTM 961).(2)Tested for air projection (DTM801), purification coverage in a 2860ft³ room (TM-003771) and heating performance in a 1236ft³ room (DTM961).(3)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.(4)Not applicable to heating.