Before using humidifier,after add the pure water,please waiting few minutes .The filter need to wet 100%.Do NOT use immediately after add water .Becasue the filter need electric by the iron wire. if used immediately after adding water, will burn out. If you need to add aroma or essential oil ,please only add 1 or 2 .If add too much ,it will clogging the mouth .Please avoid this problem . About the mouth,if there are water or dirt,it will lead to can not working preperly. Timely wipe it . New Design MINI Car Humidifier Auto Mini Car Humidifier Air Purifier Freshener Travel Car Portable Compact and , this personal humidifier offers portability that is perfect for travel use. Save energy, convenient to use. Automatic water protection with a stable and reliable system that allows you to easily enjoy intelligent life It can increase humidity of air, reducing dust and . 180 degree rotation to make full humidification. You can drop the aroma oil(not include) into the water to make the air fresher. Notice: Use the product when car is turned on. Don't use it in lack of water,Working tempreature:0-45 degree. Keep it away from chirdren,Clean the water and put product in dry environment when you don't use it. Colour: white Material: ABS Size: 6.6cmx5.9cmx17.4cm Package Contents: 1 * Air Humidifier Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.