... time: 21-30 square meter 4.noise:<35db(a) Beautiful room air humidifier Advantages:1.Letter Patents2.Certificates(Unit): CE,ROSH ... area: Home,Beauty salon,SPA,Yoga,Office,Corridor,Pet room,Baby’s room,Hotel, Hospital,etc.Features / Description:1.Ultrasonic technology2.Power ... pre-sale serive&after-sale services Welcome OEM/ODM orders Pictures of product are just for reference ,If you are interested ...