Description :AUGIENB HEPA Ioniser Car Air Purifier Portable Humidifier Oil Aroma Diffuser 1. Cup Design2. One-button Switch3. Negative Ion Purification:release negative ions up to 3 million / cm3, while precipitating PM2.5 fine particles in the air, effectively improve air quality.4. HEPA Filter :High-efficiency filtration of PM2.5 element can filter harmful substances in the air, such as removing formaldehyde toluene, harmful gases such as dust, odor and bacteria.5. Purification And Humidification :Ultrasonic ion atomization technology produces finer water mist.6. Essential Oil Aroma :With aromatherapy SPA function, a little plant essential oil can be dripped into the water.7. Powerful Straight Exhaust Fan8. 35DB Silent Operation:The operating sound of the car air purifier is below 35DBIt can be used in the office or bedroom as well.Specification : AUGIENBColorBlackWeight454gRated Frequency50 HzVoltage5VPower ModeUSB, Car Power SupplyControl MethodPush ButtonWorking PrincipleNegative IonsApplicable AreaLess Than 10m2Air Purifier Air Volume51-150 Cubic Meters / HourFunctionHumidificationUse EnvironmentCarFilter TypeSeparate FilterNoise35 (dB)HOW TO REPLACE THE FILTER:Remove the silicone pad from the bottom of the purifier, use a screwdriver to remove the screw, and open the cover to replace the filter.Package Includes :1 xCar air purifier1 xUSB Cable1 xScrewdriver1 xInstruction Manual