Car Charger Port Air Humidifier Travel Portable Ultrasonic Aroma Mist Humidifiers Air Purifying Car Humidifier Car diffusers makes your car smell good: Small volume, water volume is about 100ml, only 1-2 drops of essential oilin water can achieve the aromatherapy Portable humidifiers for car: Use 12V charging input for easy use. Car diffusers for travel: Generate a large number ofactive oxygen anion, and react strongly with the harmfulgas molecules in the air,effectively remove formaldehyde, benzene, ammoniaTVOC and other hazards. Perfect size for your car: You can feel the originalecological fragrance effect in 2 seconds. It is fundamentally different from the traditional heating and combustion type heat fog,Its cold fog technology does not damage any components of the essential oil and is safer to use.