PureGuardian 13L Output Per Day Ultrasonic Warm and Cool Mist Humidifier， Large Room， Home， Office， Bedroom， Silver Clean Treated Tank， 3...<div style="text-align: left;"><strong>[Product Information]</strong><ul><li class="showHiddenFeatureBullets"><span class="a-list-item"> Large 2 gallon tank provides up to 120-hours of run time and is great for medium to large rooms </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Ultrasonic Technology quietly disperses a fine mist providing relief from the dry air </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Silver Clean Protection fights the growth of mold and mildew on the surface of the water tank </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> You choose warm or cool mist to optimize your comfort </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Electronic control options include night light， 12-hour timer and 3 speed settings </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51j7WxAQAyL.jpg" noproxy>