The Dyson Pure Cool Desk Fan automatically removes 99.95% of allergens and pollutants as small as 0.1 microns from the air. Operated by remote control or through the Dyson Link App to monitor air quality, performance and the life of your filter. It is also a cooling fan for the summer. Automatically monitors, reacts and purifies ; then reports to your dyson link app. So you can remotely control your environment. Suitable for room size up to 16m. Quiet operation. 10 speed settings. Auto shut-off. HEPA filter. Filter included. CADR rating smoke 60. CADR rating pollen 60. CADR rating dust 60. Size H61.6, W35.5, D10.4cm. British Allergy Foundation approved. Manufacturers 2 year parts and labour guarantee.