Check the listing for details. Equate Cool Mist Humidifier w/ NEW Replacement Filter Tested & Working. Color: White, Condition: Used, Made in China. Listed at 39.00 USD. Keep your room feeling more comfortable with the Equate 1.1-Gallon Invisible Cool Mist Humidifier. Designed for rooms up to 250 square feet, this humidifier releases invisible cool mist to help add moisture to the air. The filtered moisture system helps provide a refreshing environment, while the generous 1.1-gallon capacity delivers up to 24 hours of runtime on a single fill. The easy-to-use design makes it simple to maintain daily comfort in bedrooms, nurseries, home offices, and other small-to-medium spaces. The humidifier is also compatible with Equate Medicated Vaporizing Steam Liquid as shown on the packaging. Choose the Equate 1.1-Gallon Invisible Cool Mist Humidifier to help create a more pleasant atmosphere in your home.