Take this oil diffuser humidifiers for your car to enjoy fresh air and aromatherapy spa $New ultrasonic humidifiers can more effectively break water and essential oils into extremely micro-particles, which can absorb dust and other harmful particles in air, help to fresh your air in car.$Much oxygen anion released from the mist helps for better breath, let you feel happy and enjoy energetic driving experience.$The strong vapor balance humidity in car, relieve skin problems in dry and allergy season, reduce static electricity shocks, cover the smell of pets or smoking, protect leather items for car.$Add in several drops of your favorite essential oils, it make instant fragrance in car, enjoy the aromatherapy spa in the happy journey.