High efficiency ozone & negative ion generator, dual working modes with timer to satisfy your different needs. 360 all around, compact size, light weight, and with exquisite workmanship. Perfect for bedroom, wardrobe, washroom, refrigerator, office, car, etc. Features: High efficiency ozone & negative ion generator, with strong vortex fan yet low working noise. Dual working styles: 20 minutes timer mode, and 5 minutes on + 2 hours off circulation mode. 360 all around design, offering you a fresh and clean living space. Compact size with light weight, easy for you to carry around. Perfect for bedroom, wardrobe, washroom, refrigerator, office, car, etc. Specifications: Material: ABS + Electric Component Color: White + Grey Power: 3W Ozone Output: 120mg Anion Concentration: 2800W Applicable Area: 10-20m Built-in Battery: 3.7V 2200mAh Lithium Battery Item Size: 11.5 * 11.5 * 4.2cm / 4.5 * 4.5 * 1.7in Item Weight: 244g / 8.6oz Package Size: 15.0 * 12.0 * 4.5cm / 5.9 * 4.7 * 1.8in Package Weight: 287g / 10.1oz Package List: 1 * Air Purifier 1 * USB Cable 1 * Manual