Room air humidifier: 1.capacity: 2.6-4.0L 2. ... : 21-30 square meter 4.noise:<35db(a) Beautiful room air humidifier Advantages:1.Letter Patents2.Certificates(Unit): CE,ROSH ... Applicable area: Home,Beauty salon,SPA,Yoga,Office,Corridor,Pet room,Baby’s room,Hotel, Hospital,etc.Features / Description:1.Ultrasonic technology2. ... business relationship with you in the near future! Beautiful room air humidifier