You can use a handheld vacuum if you have one at home, but making a trip to a car wash is usually more effective. You can use the nozzle vacuum cleaner there, which should be able to thoroughly remove dirt and debris from your car that may be causing a bad smell.

Most cleaners should be diluted with water prior to use. Make sure to test the cleaner on a small, unnoticeable portion of your car’s floor first to make sure it’s safe to use on your car’s interior.

You should test any cleaner you use on a small, inconspicuous portion of the car first to make sure it doesn’t cause damage.

Make sure to test any pet deodorizer you’re using on a small, unnoticeable area in your car first to make sure it doesn’t cause a stain or damage your car.

Keep in mind, even professional cleaning does not have a 100% success rate at lifting tobacco odor, especially if a car was driven for years by a heavy smoker.