Features: Large water tank capacity, no need to add water constantly, ideal for using at night. It adopted ultrasonic technology, this diffuser is extremely quiet when working which ensures a good sleep. Evaporate the water and increase moisture, creating a comfortable and indoor environment. It is designed with double mist outlets and amount of mist for a large application area. With LED light, changing light color is very beautiful and very practical to use at night. With automatic protection of lacking water, safe and reliable. 4L Specifications: Material: ABS Color: Blue + White Voltage: 220~240V Plug: UK Plug Rated Power: 23W Water Tank Capacity: 4L Mist Volume: 350ml/h Mist Outlet Quantity: Two Application: 20~35m² Noise: <36db Automatic Protection of Lacking Water: Yes Timing Function: No Height: approx. 31cm / 12.20inch Water Tank Size: approx. 19 x 17cm / 7.48 x 6.69inch Weight: approx. 1270g Package Included: 1 x Humidifier Note: 1. Please allow 0-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.