1.Remove bad smell, eliminates dusty, smog. keep air fresh 2. Low noise, low consumption. 3. Negative Ion: 8 millions pcs/cm3,Provide fresh air environment is more suitable for the human body. 4. Purification function, negative ion can fast absorb and neutralize harmful substance, promote human body metabolism, improve immunity and adjust human body balance, it is also named as “Air Vitamin” 5. Smart design with Led indication, LED brightness: 10-20Lux at night. Has sound Sensor control Led lights, it can used as the night lamp 6. Used in kitchen ,mini room or space, especially very good for living room.