Description: By releasing a large amount of oxygen anions, this car air purifier can decompose harmful smoke and gases efficiently around you can create cleaner and fresher air. This car air purifier can help you refresh, relieve fatigue and motion sickness symptoms. It is unnecessary to charge this car air purifier because its long standby time. Made of ABS and electronic components, this car air purifier is eco-friendly, durable and hard to use. The length of this car air purifier is 5.9cm, width is 5.7cm and height is 16.3cm. This car air purifier is suitable for being used in refrigerator, car, bedroom, office and so on. Item Name: Car Air Purifier Material: ABS,Electronic Component Power Supply Mode: 3.7V (18650 Battery), 5V (USB) Battery Capacity: 2200mAh(Included) Power Consumption:0.6W Charging Time: about 4H Battery Life: about 20 Days(Ozone Mode) Negative Ion Concentration: 5,000,000pcs/cm Ozone Concentration: 12mg/h Working Temperature: -10 Degree Celsius-40 Degree Celsius Storage Temperature: -20 Degree Celsius-60 Degree Celsius Features: Refreshed, Mute, Comfortable Size Details: 5.9cm x 5.7cm x 16.3cm/2.32" x 2.24" x 6.42" (Approx.) Notes: Due to the light and the screen setting difference, the item's color may slightly differs from the pictures. Please allow slight dimension difference due to the manual measurement. Package Includes: 1 x Car Air Purifier 1 x USB Power Supply Cable 1 x 18650 Battery(Built-in) 1 x User Manual