Permanent odour removal: permanently eliminates odours on a molecular level. Removes bad smells like cigarette smoke, wet dog, workout gear and more. One-time use: simple one-time-use aerosol refreshes every corner of your car’s interior. Air Refresher: aerosol mist moves through the ventilation System, across the headliner and in between all other hard-to-reach areas, eliminating odors and leaving a pleasant scent in its place. Easy to use: simply turn the AC on high, hit the recirculate button, activate the re-fresher and close the doors for 10-15 minutes. Then open all doors and air out for 10-15 minutes. The popular Black Chrome scent: leaves behind a fresh aroma.