everlasting comfort cool mist humidifier for bedroom (6l) - filterless, quiet, ultrasonic - large room home air diffuser with essential oil tray (black) everlasting comfort the everlasting comfort 6 liter humidifier is the ideal tool for taking a room from uncomfortably dry to comfortably perfect. our bedroom humidifier is ideally suited for rooms up to 500 square feet. it features a whisper quiet ultrasonic motor that will ensure you don't get annoyed or distracted by a constant buzzing. the adjustable motor pumps a cool mist out of the 360 degree nozzle that disperses water in a wide array. the humidifier's large room capacity is thanks to its 6 liter water tank that can keep pumping for 50 hours straight. that means fewer refills and less maintenance compared to similar humidifiers. the water reservoir is simple to remove for easy refilling and the occasional cleaning. we made our humidifier filterless to save you money, meaning you don't have to worry about the ongoing expense that usually comes with costly replacement filters. we aim to create the most comfortable environment possible. to do this, we designed our humidifier for bedroom with an essential oil tray. a couple of drops in the tray will enhance any space by putting out a pleasant aroma. our humidifiers with essential oils let you combine different essential oils for a truly customized experience. it's a small humidifier that produces big results. specifications: water tank capacity: 6l (1.6 gal); power: 22w; mist output: 120 to 270ml/hr; run time: 22 to 50hrs based on mist output; filterless design