Dyson purifiers combine intelligent sensing with an advanced filtration system that captures gases and 99.95% of particles as small as 0.1 microns. And only Dyson purifiers have powerful Air Multiplier technology to purify the whole room. Integrated sensors constantly analyse your air, while our unique algorithm cross-checks data every second. It diagnoses pollutants at a molecular level, displaying live results on the LCD. The HEPA H13 filter captures 99.95% of particles as small as 0.1 microns. A layer of activated carbon also removes odours and gases including VOCs. Only Dyson purifiers have Air Multiplier technology. It generates the circulation power to draw even distant pollutants into the machine, projecting purified air throughout the room. In our latest purifiers, it's not just the filter that meets HEPA H13 standard, it's the whole machine. So what goes inside, stays inside. In warmer weather, a powerful stream of purified airflow can cool you down.