2L WATER TANK - up to 280ml of moisture per hour, safely moisturizes the air for up to 10-16 hours.NO NOISE - JUST AIR. With adopted ultrasonic technology, Cool Humidifier is extremely quiet - less than 32dB. Suit , office, reading room, etc. EASY TO OPERATION - Conveniently adjust the output by turning the dial knob. It gives out cool and ,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 - it will automatically shuts down ensures safe. Air Humidifier is the perfect choice for your home and office. With compact and , this compact unit is energy-efficient and uses ultrasonic technology to soothing moisture to dry air which is indispensable for everyone, especially for children and the elderly. 2L water tank: 280ML / H capacity humidification, Releases moisture into the air for 10-16 hours, make your room wet quickly to enjoy a better night's sleep. This cold humidifier prevents dry, smelly air and keep face & skin moist and refreshing overnight. Features: nozzle, smart LED indicator, and auto shut-off when waterless and tank lifted up, surrounding you with evenly and safely. Dial Knob Control: Selecting the output conveniently for full control of the air you . 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 any essential oils into the water tank. To prevent any unpleasant odor and the efficiency, Please regularly clean the humidifier with Citric or vinegar. Plug Type:US Plug,it applies to Canada, ,Mexico, Thailand, the , the Philippines,Taiwan and so on. colour:blue Material:plastic size:135 x 135 x 230mm Package Contents: 1 x Humidifier (with US plug) Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.