Schoolsupply Portable Bottle 180ml USB Mini Humidifier Air Purifier Diffuser Mist Maker Home Car Humidifier with LED Night Light (Baby Pink) PORTABLE CREATIVE DESIGN -- bottle shape air humidifier which is portable used in room,office,car,SPA,YOGA. LED NIGHTLIGHT FUNCTION--the soft LED nightlight can lift your mood and relieve stress from stressful and tired day. ULTRASONIC OPERATION -- this bottle humidifier adopted ultrasonic technology WATERLESS AUTO SHUT-OFF FUNCTION -- shuts off automatically when the water runs out. AIR PURIFIER -- Remove unfavorable odors and smells, moisturizing your skin,Increase humidity of air, reducing dust and bacteria.