The first Dyson personal purifier fan. Cool with purified air, not dirty air. The BP01 purifier fan is engineered to help improve air quality. It projects cooling, filtered air wherever you need it. The fully-sealed filter combines an activated carbon filter to remove gases, and a glass HEPA filter that captures 99.95% of ultrafine particles from the air. Adjust the dome\'s position to angle the flow higher or lower using Core Flow™ technology along with 70 oscillation to project a precise stream of air where you need it.For a comfortable night\'s sleep set the sleep timer anywhere between 30 minutes and 8 hours. LCD screen displays airflow speed, modes and filter life.10 speed settings. Variable speed. Remote control included. Oscillating. 1.85m cord length.