Optimus U-31001 Portable Cool-Mist Ultrasonic Humidifier, 600 Sq. Ft., 1.2-Gal. Tank Capacity, U-31001
• Operates up to 18 hours;• Water-empty auto shutoff switch and refill light;• Adjustable mist volume control;• Easy-to-fill transparent water tank;• Whisper-quiet operation;• Removable 1.2-gal. tank with handle for easy filling;• Moisture output more than 230 mL/hour;• cETLus approval;