Ultrasonic Cool Mist: The humidifier safely releases moisture into the air for up to 40 hours, helping you to breathe easier and enjoy a better night’s sleep – The fully adjustable dial lets you choose the perfect speed for cool soothing mist to be released into your roomIntegrated Ceramic Filter: A ceramic ball filtration system removes impurities from the water before it is vaporised, providing you with clean hydrating mist that relieves cold and flu symptoms, dry skin & prevents dry sinusesLed Night Light: At the click of button your humidifier can turn into a relaxing night light perfect for children and babies bedrooms. – The fully 360° rotating nozzle allows you to direct cool mist into any direction you desire, making it perfect for bedrooms, kitchens and other medium sized roomsUp To 40 Hours Continuous Operation: The large 3.8 L water tank allows the humidifier to run continuously from 20 to 40 hours. The whisper quiet operation allows it to be on all night without causing a disturbance, making it a great choice for both children’s and adults bedroomsRemovable Tray For Essential Oils: Add essential oils to the removable tray to create a scented mist that fills your room with a soothing aroma. The humidifier is also designed with an auto shut off function for when water levels are too low, allowing you to leave it on overnight worry free