This purifier fan heater from Dyson combines three appliances in one. It heats and cools your room as well as capturing dust, allergens and bacteria – even destroying formaldehyde. Enjoy amazingly clean air and always feel the perfect temperature with the HP09. Whether you’re feeling chilly in the winter, hot during the summer, or just want to know you’re beathing pure air, the Hot + Cool Air Purifier does it all. Featuring a catalytic filter unique to Dyson, it continuously traps and converts formaldehyde into water and CO2. And, as its self-regenerating, you’ll never have to replace it. Air Multiplier technology and an oscillation and tilt mechanism project air throughout the room. You’ll get over 290 litres of smooth, purified air pumped out every second, meaning you can enjoy it wherever you’re sitting. What’s more, the HP09 is the only purifier to be fully sealed to HEPA H13 standard, capturing 99.95% of allergens and pollutants inside the appliance. Always breathe easy with Dyson.