When using this product Noise may enter TV, radio, etc. Ozone is generated simply by plugging into a power socket Deodorize the air in the car Usage notes It can be used for vehicles with internal diameter mm 21 mm or more and 未 満 22 mm or less of genuine accessories power socket Car models with shallow power sockets (35mm or less) May not be used for cars with special shapes (such as foreign cars) Once an hour during use Please open the window and ventilate secure