Air Diffuser Humidifier, for Home Office Essential Oils Aroma Scented Oil Diffusers Cool Mist Humidifier 2 nozzles and 3 humidification modes for 30 hours continuous humidification (3L large capacity)Noticethe tubular sponges need to be pre humidified (soaked in the water tank for a bit) otherwise it will take a while before the humidifier will start the mist. 1.3000ml Large Capacity: Humidifier has enough water storage, eliminating the need to add water frequently, once filled with water, can continue to spray for about 30 60 hours. The inner wall of the tank is smooth for easy daily cleaning. 2.[Humidification & Air Purification] An ultrasonic