3 Long working for time 2L water capacity, In double spray mode, it will work for 4-6 hours Besides, LED display clearly shows the remaining pawer and water capacity No more worry about lack of water 1 The independently controlled double spray design and large water for tank capacity, has higher spray output The humidifier uses atomization technology to form nano-scale mist, which can operate in the whole room 4.This humidifier is silently quiet with working noise lower than air conditioning so that you can sleep or work without interference An for Ideal humidifier for quiet indoor use and suitable for sound-sensitive people 5 Multifunctional and widely use Not only add water, you also can add lemon slices, rose petal, or other dried petals to smoothe nerves, and help sleep Exteremly fir for olds, ladies, kids, room,, ect 2 This double spray mute humidifier with watchable water for tank, for touch swich, and atmosphere night light provide you a quiet and comfortable night sleep