2.2L Efficient Humidifiers for Bedroom: With 2.2L large tank, the cool mist humidifier allows up to 24 hours of working in low mist. omni-directional rotating nozzle ensures an even level of humidity distributed at home. Breathe the forest fresh air in your home. 28dB Whisper-quiet Cool Mist Humidifier: Homasy Ultrasonic humidifier lowers the noise level to 28dB (quieter than a computer) for quiet humidification without disturbing your study, working or sleeping, away from those nasty noises. Easy to Clean Humidifier with Large Openning: Designed with 3.25 inches large opening, Homasy cool mist humidifier is really convenient for your daily clean and easy to refill. And the arc shaped handle with anti-slip grooves offers you securer grip than others, easy to carry to anywhere you want. Precise Mist Output Control: Designed with dial knob mist control, you can adjust mist output volume to ideal humidity level for comfort and health by the dial knob. Which is more precise than the button control. Auto Shut-off and Safe to Use: Homasy humidifier for bedroom will automatically shut off with red LED light on when runs out of water. You can totally free your worry about it will dry running when you are sleeping.