Enjoy comfortable, clean air right away with TOSOT Ultrasonic Cool Mist Humidifier. Unlike traditional humidifiers with a bottom-fill tank, the Cool Mist Humidifier features a top-fill design that saves time and prevents spills. The one-button controls eliminate any complicated settings for a simple humidifier that brings convenience to your life. The Cool Mist Humidifier features three different mist output levels (high, medium, low) for hours of fresh, clean air. The 360 mist nozzle is also designed to cover the entire room. Its peak sound level of just 28 decibels lets you have a peaceful sleep at night.