everlasting comfort cool mist humidifier for bedroom (4l) - filterless, small, ultrasonic, quiet - large room home air vaporizer for babies - diffuser and essential oil tray (black) everlasting comfort the everlasting comfort 4 liter humidifier is the perfect tool for transforming any dry space into your personal zen zone. our bedroom humidifier is ideally suited for rooms up to 300 square feet. it features a whisper quiet ultrasonic motor that enhances your space by keeping it quiet. the adjustable motor pumps a cool mist from a 360 degree nozzle for wide coverage. the humidifier has a 4 liter water tank that keeps pumping for up to 40 hours straight. meaning you'll have fewer refills and less maintenance compared to similar small humidifiers for bedroom. the water reservoir is easy to remove for refilling and the occasional cleaning. we made our humidifier filterless to save you money. no more worrying about costly replacement filters designed to keep you spending. to further enhance your experience, we designed our vaporizers for bedroom with an essential oil tray. a couple of drops in the tray will add a personal touch with your own tailored aromas. our humidifiers with essential oils let you combine different oils for a truly customized experience. it's a small humidifier that acts like its big brother. specifications and features: 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, essential oil diffuser, 360° dual mist nozzles, fully adjustable mist output level, led night light, auto shut down safety feature, water level indicator window, wide mouth water tank opening for filling and cleaning, grip handle, non slip base, cord storage on bottom of base, etl/ul certified, bpa free