Bring a subtle, calming scent to your car with our Refillable Car Diffuser. Simply clip it into your air vent and use our reusable blank sticks to switch between any of our stunning Karma Living essential oils that you can choose from. Discover a new level of relaxation on your daily commute with this car diffuser. Please note that the purchase of this product does not include essential oils and they can be purchased separately on our website. Directions: Fill the vessel about 3/4 full with oil (avoid overfilling). Insert the infuser stick into the bottle, pushing it into the oil. For instant scent, flip the stick so the dipped side is on top. Attach the diffuser top with the clip to the bottle and securely place the Car Diffuser on your air vent. For best results, use with airflow. Keep the diffuser upright during use; do not tilt. Always replace the cap when not in use and clean up any spills. Once finished wash out and use again with another blank infuser stick. Note: Scent strength may vary based on car temperature, oil amount, and type. Avoid leaving the diffuser in extreme heat.