Features: 1. The ozone purifier is mainly composed of active oxygen, which can effectively eliminate odor. 2. Suitable for use in small spaces such as refrigerators, shoe cabinets and car. 3. Three-speed adjustment, applicable to different deodorizing spaces. 4. The density of active oxygen is greater than that of air, please place it on top of the place where purification is required, such as the top layer of the refrigerator. 5. The device has strong oxidizing ability and can directly destroy the molecular structure, thereby deodorizing and eliminating odor without harming human body and food. Specification: Condition: 100% Brand New Material: ABS Rated power: 0.5W Charging voltage: DC 5V Battery capacity: 2000mah lithium battery Gear position: 3 gear adjustment (low, medium, high) Size: Approx. 47*47*100 mm / 1.9*1.9*3.9 in Weight: Approx. 172g / 6.1 oz Package list: 1 * Ozone Purifier 1 * USB Cable 1 * User Manual Note: 1. Keep the product dry and avoid rain and fog affecting the electronic circuit.