Dyson Purifier Hot+Cool HP1 exclusive to Bestbuy delivers whole-room heating4 and powerful cooling6 with purified air. The fully sealed filter system captures 99.97 of microscopic allergens² and pollutants as small as 0.3 microns.¹ 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.7 Connects to the MyDyson app to control and monitor air quality from anywhere or hands-free with compatible voice services.5