Whether it's a warm summer's day or you just want to keep the air fresh and pure, the Dyson Pure Cool Meis an ideal choice. Designed as a personal purifier fan, it keeps you cool whether you're at your desk at work or chilling in your bedroom. The focused stream of cool, filtered air is created by Dyson's Core Flow technology, helping you to breathe easy and stay cool even on the warmest days.Set your machine to rotate from side to side, to deliver airflow through a 70˚ range.At night, you can set the sleep timer anywhere between 15 minutes and 9 hours. So you can keep cool and comfortable while you rest.Built-in reminders show you when your filter needs changing. It’s quick and easy to do, to ensure your machine is always working at its best.The LCD screen shows your airflow speed, modes and filter life.