Effective odour elimination on a molecular level is achieved through permanent removal of bad smells such as cigarette smoke and wet dog odours from the interior of vehicles. One-time use aerosol spray can be used to refresh all areas of the car's interior by circulating air through the ventilation system, across the headliner and in between hard-to-reach spaces. Utilizing this product is straightforward: activate the recirculate button, turn on the air conditioner to high, engage the re-fresher, and wait for 10-15 minutes before allowing fresh air to circulate for another 10-15 minutes. The end result leaves a pleasant citrus aroma behind.