Dyson Purifier Hot+Cool Formaldehyde purifying fan heater HP09

3 in 1: Purifies all year round. Heats in winter, cools in summer. Senses and displays real-time air quality. Captures allergens, pollutants and gases. Night-time mode using quiet settings and a dim display. Smooth, yet powerful airflow – circulating purified air throughout the whole room. It combines a precise solid-state formaldehyde sensor with a unique catalytic filter that continuously destroys formaldehyde. HEPA H13 and activated carbon filters also capture dust, allergens, gases and other ultrafine pollutants. And Dyson purifiers have powerful Air Multiplier technology to purify the whole room.