2L WATER TANK - Produce up to 280ml of moisture per hour, safely moisturizes the air for up to 10-16 hours.NO NOISE - JUST FRESH AIR. With adopted ultrasonic technology, Cool Mist Humidifier is extremely quiet - less than 32dB. Suit for home, office, reading room, etc. EASY TO OPERATION - Conveniently adjust the mist output by turning the dial knob. It gives out cool and smooth mist,for easier breathing and a good night's sleep. AUTO TURN-OFF - If during the night a humidifier happens to be out of the water, you can sleep tight - it will automatically shuts down ensures user safe. Air Humidifier is the perfect choice for your home and office. With its compact and smart design, this compact unit is energy-efficient and uses ultrasonic technology to add soothing moisture to dry air which is indispensable for everyone, especially for children and the elderly. 2L large water tank: 280ML / H large capacity humidification, Releases moisture into the air for 10-16 hours, make your room get wet quickly to enjoy a better night's sleep. This cold mist humidifier prevents dry, smelly air and keep face & skin moist and refreshing overnight. Powerful Features: 360 degree nozzle, smart LED indicator, and auto shut-off when waterless and tank lifted up, surrounding you with clean air evenly and safely. Dial Knob Control: Selecting the mist output conveniently for full control of the air you breathe. Space Saving Design: Vertical oval shape designed for bedroom nightstand and office desk, fitting narrow space for better air wherever you are. Easy Refill: lightweight and slim 2L tank, pick it up with one hand for an easy refill. Do not add any essential oils into the water tank. To prevent any unpleasant odor and promote the efficiency, Please regularly clean the humidifier with Citric or vinegar. Plug Type:US Plug,it applies toCanada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on. colour:blue Material:plastic size:135 x 135 x 230mm Package Contents: 2 x Humidifier (with US plug) Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.