Stadler Form OSKAR BIG Humidifier, Black Virtually Silent and White Dust Free Emitting up to 4.5 gallons of moisture per day in spaces up to 1,100 square feet, counteracting the effects of a dry climate, such as cracked lips, dry Skin, or sinus congestion Consumes low amounts of energy (8-30 watts) and the wicks are made from a recyclable, biodegradable material Oskar Big allows the option for using essential oils in his cleverly hidden compartment, filling the air with your desired aroma to create a relaxing or invigorating atmosphere Filter replacement reminder and automatic shut off