Aromatherapy office fog humidifier $ 17.05 Article No.: BP8 Applicable area: 41-60 square meters Function: Ultrasonic Water tank capacity: less than 1 liter Number of mist outlet: 1 Operation mode: Mechanical Timing function: 2-8 hours Water shortage and power failure protection: support Power mode: USB Shape: columnar Noise: below 36dB Rated voltage 5 (V) Rated power: 2 (W) Suitable for household use