Add humidity—and classic good looks!—with this ultrasonic humidifier from the Vornado Alchemy line. Half-gallon water tank humidifies for 12–24 hours (on high/low settings). Dual-fan system ensures surroundings (up to 300 sq. ft.) remain comfortable; independent ambient light creates a majestic atmosphere with 3 brightness settings. 5.75" diam. x 11.75".