Air Multiplier™ technology. No blades, no choppy air. Amplifies surrounding air, giving an uninterrupted stream of smooth airflow. Safe, no fast-spinning blades. Smooth oscillation to direct airflow around the room. Sleep timer can be programmed to turn off preset intervals, from 15 minutes to 9 hours. Easy to clean with no awkward safety grille or blades. Simply wipe with a dry or damp cloth. Remote control with ten precise airflow settings. Curved and magnetized to store neatly on the machine.