iTvanila Cool Mist Humidifiers, Ultrasonic Humidifiers, Air Humidifiers 5L Large Water Tank for Baby,Bedroom,Living Room,Office,Auto-Off Whisper Quiet (Black)LONG LASTING RELIEF: Equipped with a 5L 1. 3 Gallon water tank, this cool mist humidifier support 15 50 hours of continuous humidification (depending on mist level setting); Large tank and powerful mist output provides ideal coverage for single bedrooms, offices, and other rooms from 376 480 ft2 ADJUSTABLE MIST LEVEL: Presets 3 mist levels low, medium and high to adjust moisture output for different conditioned rooms and areas; On the top there is a