Dyson Pure Cool Link Air Purifier & Fan (White - Tower) - Part No. 305158-01 Removes 99.97% of allergens and pollutants as small as 0.3 microns. 360° Glass HEPA filter captures ultrafine particles from the air including pollen, bacteria and pet dander. Purifies all year round. Purifying fan in summer. Year-round purification and circulation. Increase airflow speed for cooling in summer. Intelligent purification. Automatically monitors, reacts and purifies - then reports to your Dyson Link app. So you can remotely control your environment. Air Multiplier™ technology Long-range projection to circulate purified air across the room. Automatic night-time mode. Monitors, reacts and purifies, but only using the quietest settings. LED display dims - no disturbance.