Spread: Reaches an area of 10 - 20 metres. Humidifier: Grab yourself a USB electric humidifier. Usage: Up to five hours of use with a full water capacity. Refresh: with this device that promotes moisture filled air! Colour options: Choose from white, light brown or dark brown. Size: This humidifier measures 11cm x 11cm x 11.5cm. | Aroma Essential Oil Electric Humidifier | Wowcher