Air Purifier, Humidifier, Evaporative Humidifier, Large Capacity 4L, Suitable For Up To 25 Tatami Mats, Triple Sterilization, Pet Elimination, Top Water Supply, Humidifier, Automatic Humidity Control, Timer, Sterilization With Negative Ions, Easy To Clean, Ultra-Quiet, Energy-Saving, Power Saving, USB Powered, Anti-Drying, Anti-Virus