The fully sealed filter system combines an Activated carbon filter to remove gases with a HEPA filter that captures 99.97% of microscopic allergens² and pollutants as small as 0.3 microns.¹The whole purifier, not just the filtration system, is fully sealed to HEPA H13 grade – so what goes inside, stays inside.³Dyson Air Multiplier technology projects over 76 gallons per second of smooth, yet powerful airflow⁷ to cool you in summer.⁶Captures 97% of odors such as cooking odors, pet odors and smoke.⁸Control and monitor air quality from anywhere using the MyDyson app, or hands-free with compatible voice services.⁵Set schedules and receive personalized air quality reports via the MyDyson app.⁵Remote control is curved and magnetized to store neatly on your machine.Smooth oscillation up to 350° directs airflow around the room.