Providing cleaner moisture for your family is at the heart of the Cool Moisture Humidifier. This humidifier has a 1.0 gallon tank with an ultraviolet chamber that helps treat the water for a cleaner mist giving you peace of mind when adding moisture to dry indoor air. The wicking filter captures and removes minerals and impurities from the water. Increasing the humidity level in your home can help you create a better sleep environment. To enhance your comfort simply add Vicks VapoPads (one sample included) and breathe in the soothing scent. The Vicks Cool Mist Humidifier helps the user breathe better and sleep more comfortably for everyday comfort. Using a humidifier in your bedroom is an essential part of a good night s sleep when the air is dry in allergy season or when sick. This unit is recommended for medium rooms of up to 400 sq. feet. Use with replacement filter WF2.