Sharper Image Closet Ionic Air Purifier is designed to keep your closet and clothes fresh and clean. It uses advanced ionic breeze technology to neutralize odors and safely freshens textiles, including wool and silk. The device is compact and easy to use, with high and low settings and a speed burst for persistent odors. It can run on battery power or be plugged into an AC outlet. The removable metal dust collectors are easy to clean, and there are no expensive filters to buy.