Brand New in ???? Functions as a cooling fan, humidifier, and air purifier. 2. Large 10L Water Tank: Easy to refill with its convenient upper and lower water tank design. 3. Adjustable Louver Design: Dust-proof enclosure for the cooling fan. 4. Easy Mobility: Four universal wheels for 360° rotation, making it easy to move around any room. 5. Quiet and Efficient: Quickly generates cool air and wind while operating quietly.