Touch Screen button. Newly designed with round smooth apperance and apply touch screen function?? to let you experience the high quality and sensitive touch screen diffuser.</br>Low water level auto cut off?? safe and reliable. Water tank capacity of 500ml that can continue to use 6-7 hours according to different modes.</br>Great sleeping night light and Low noise(less than 35dB) to enjoy your comfortable life??7 Color LED Lights auto Changing or at Your Optional.You can choose the lights automatic changing model??or choose one color you like.If don't want the lights on?? just turn off them.</br>Humidity control according to your need. There are " "2h" "4h" and "Low" four Mist levels for your optional??you can choose any level according to your current air humidity.</br>Helps Purify and Humidify the Air and improves the quality of the air we breath.Doryum diffuser can be used to purify air when someone smoke in your room?? or when the air smells stale or you are allergic to the air.It is a great cool mist diffuser for dry air.</br></br>Product Description</br></br><p><b>Note:</b> Please note: do not turn on your diffuser while empty?? or fill past the 'max' water level line. Both can damage the device permanently. </p> <p><b>Light Control:</b></p> Features LED light with three different effect options.</b></p> Press once: slowly cycle through each color.</p> Press twice:LEDS stay on current color.</p>Third Press: allows user to cycle through available colors?? which will stay solid. </p> To power LEDs off?? hold the light button for 3 seconds. .</p> <p><b>