1.CAR DIFFUSER MAKES YOUR CAR SMELL GOOD: You can use car diffusers for essential oils every day. U can feel invigorated and less anxious during long road trips, heavy traffic or long working hours by adding a few drops of yr favorite essential oils into this mini huimidifier. When u go out on a picnic with yr family on weekends, the car humidifier will make roast chicken in the car and yr kids' diapers smell good. The mini huimidifier & portable humidifiers will bring comfort to your daily life!2.PORTABLE HUMIDIFIERS FOR CAR/DESK/TRAVEL/BEDROOM: Compact in Size, Light in Weight;this personal humidifier is small like a phone to carry with.The car diffuser can be fit firmly in the car cup holder,no water splash out during drive.This portable humidifier/travel humidifiers/desk humidifier that also fit for travel,office desktop,bedroom and even house plant care! The car diffuser/mini diffuser is very suitable for long-distance drivers that will keep u in a happy mood at all times3.Simple and stylish design4.Suit for winter