When you want to moisturize the air you breathe, without circulating molds, mildew and germs, you want this Digital Warm and Cool Mist Humidifier. This is the one with anti-microbial protection that delivers a germ free mist. Humidified air helps you sleep better, recover from colds faster, while also relieving dry, itchy skin and chapped lips. But make certain you're enjoying a germ free mist by using this humidifier. Tank holds 1.2 gallons and runs whisper quiet for up to 24 hours. Humidifies a 500 sq. ft. room; features nozzle for direction misting. Plugs into any AC outlet. Auto shut off for safety.