aroma humidifier for essential oil large room diffuser set with 10 essential oils, aromatherapy ultrasonic 550ml diffusers for essential oil, bedroom vaporizer cool mist humidifier for home and office hls <b>hls wood grain essential oil diffuser 550ml ultrasonic aroma humidifier aroma machine </b><br> <br><br> <b>note:</b><br> 1. do not add water over max line, otherwise mist may be low.<br> <b>2. oil is included in the package.</b><br> 3. do not press the"mist"button when the tank is empty.if there is no water but press the "mist"button,the diffuser will be burned out.<br><br> <b>feature:</b><br> - natural wood gain design and high quality pp+abs materials;<br> - timer modes: continuous mist, 1hour/3hours/6hours patterny;<br> - auto shut-off when water runs out for safety;<br> - operates up to 10 hours on a full tank of water;<br> - ambient lighting with separate on/off control;<br> - perfectly suitable for large and small rooms, including baby room, living room, bedrooms, offices, dorms, hotel rooms, conference room, yoga clubs,fitness center, spa center, etc;<br> <b>- whisper-quiet ultrasonic operation: </b><br>this aromatherapy diffusers is adopted ultrasonic technology which does not generate noise when working or sleeping.<br><br> <b>operation: </b><br> 1. "mist mode"- press the "mist" button,choose the timer from 60/120/180 mins or on. <br> 2. "7 changing light"- press the "light" button to turn on the ambient light, the color will change automatically; press the "light" button again to fix the color; press the "light" button again to change color. <br><br> <b>package contents: </b><br> - 1 x 550ml aroma diffuser <br> - 1 x charger adaptor <br> - 1 x measuring cup for filling water <br> - 1 x user manual