AUGIENB Mini Mulit-function Desktop Air Purifier With 3-in1 Filter Super Silent 5 Hour Timing Fresh Air 1200 Million Negative Ion For Home/Office Features: -3-in-1 Composite filter It consists of 3-in-1 Composite filter material composite that It removes 99.97% of dust, pollen, odor, mold spores, and pet dander; filters particles as small as 0.3 microns and larger and filters air pollution of PM 2.5. Ideal for people who are affected by allergies, nasal stuffiness. -1200 million negative ion Air purifier built-in high-quality negative ion generator that can remove the dust in the air, suspended particles, static electricity. -5 Hour Timing Built-in intelligent chip,freely chooses the operation time,safe and convenient.(30mins/1h/2h/3h/5h) -Super Silent Technology Adopts high-quality fan and internal air circulating noise reduction technology to guarantee quiet sleep environment. -Double Directional Air Outlet Double directional airflow transfers healthy air to every corner,rides the room clean and healthy. -Mulit-function Options Three modes adjustments (study mode/home mode/enhancement mode),choose as you like that offers healthy life. Specifications: Brand Name AUGIENB Product Air purifier Power ≦5W Rated voltage 220V Function Timing/Anion/Sterilization/Sleep/Speed In Addition to formaldehyde/In Addition To Pollen, Except Particulate Matter, In Addition To Formaldehyde, Dust Removal, Mist Removal Mode Auto/Manual/Time/Sleep Max flow 80CFM Negative ion 6M pcs/CM3 Applicable area <30 m² Noise <28db （Low speed） Gear 3-Speed Control Product size 20*20*15cm Material: Aluminium alloy body + Acrylic panel Rated voltage: ≦5W Rated power: 220V/50Hz Purification speed: 2.7m3/S Purification filter: 3-in-1 composite filter Max flow: 80CFM Power supply: AC Noise Level: <40dB Negative Ion: 6M pcs/CM3 Coverage area: 11-20m2 Size:20*20*15cm Package Included: 1 * Micro-ecology Air Purifier 1 * Instruction