Optimus U-31000 30-Watt 0.7-Gal. Portable Cool-Mist Ultrasonic Humidifier

• 0.7-gal. (2.5-L) tank capacity; up to 1.4-gal. output per hour; adjustable mist volume control; operates up to 8.3 hours before requiring refill;• Adds humidity to air to soothe sinuses and relieve dry skin;• Removable, transparent water tank with handle for easy filling;• Water-empty automatic shutoff switch for peace of mind;• Less than 35 dBa for whisper-quiet operation; ideal for bedrooms as it won't disturb sleep;• Dimensions: 5.9 in. x 6.9 in. x 10.7 in.;