The Dyson Purifier Humidify+Cool PH2 De-NOx? purifies and hygienically humidifies the whole room*. It also cools you.** Hygienically removing 99.9% of bacteria in the water.† Removes odors and gases†† and continuously destroys formaldehyde.¶ Advanced air purification captures 50% more NO2.¶¶ The fully sealed, 3-stage filter system captures 99.97% of particles as small as 0.3 microns.§ The whole purifier, not just the filtration system, is fully sealed to HEPA H13 grade.§ Air Multiplier™ technology projects over 77 gallons per second of smooth, yet powerful airflow§§. Connect to the MyDyson™ app to control and monitor air quality from anywhere, or hands-free with compatible voice services.#