Air-O-Swiss 7135 2 Gallon Humidifier

The Air-O-Swiss 7135 ultrasonic humidifier uses high-frequency vibration to generate a micro-fine mist. It has a built-in hygrostat and an output regulator button. A replaceable demineralization cartridge ensures a hygienic, pure water mist, without lime scale or mineral residues. The Air-O-Swiss 7135 ultrasonic warm mist humidifier also features Automatic and Sleep modes. Automatic mode maintains ideal humidity you select in relation to room temperature. When the Sleep mode is set, the unit shuts off after eight hours.