Meguiar's Whole Car Air Refresher uses a car’s recirculated air system to remove odors in hard-to-reach areas in your car, truck or SUV. This single-use car odor eliminator spray permanently removes odors to get rid of bad smells like cigarette smoke, wet dog and sweaty workout gear. Meguiar’s advanced Re-Fresher technology not only removes unwanted odors but also replaces odors with a pleasant new car scent that lasts for weeks (1). Meguiars Air Refresher car spray penetrates the complete interior by moving through the ventilation system, across the headliner and in between all other hard-to-reach areas. To use, first remove the source of the odor. Next, just turn the AC on high, hit the recirculate button, activate the car refresher, and close the doors for 10 to 15 minutes. Then, let the vehicle air out for 10 to 15 minutes. If you want to snuff out odors wherever they are, permanently remove them and freshen your car interior, Meguiar’s Whole Car Air Refresher has your back. Reflect your passion for your vehicle with Meguiar’s. Since 1901, Meguiar’s has been driving the art and science of car care and empowering car enthusiasts. (1) Meguiar's Re-Fresher technology permanently removes existing bad odors through chemical bonding at a molecular level.