Ozone generating machines were originally designed to restore fire damaged homes. They began their commercial success by being used in hotels to remove cigarette smoke odor. Ozone treatments are the most effective method available for removing car odor including, stale food odors, raunchy cigarette smells, mildew odor, pet odors and more!. Even the best hot water carpet extractor (which we have) cannot permanently kill tough odors that linger even after the cause has been removed. Ozone treatments are not air fresheners! The treatment works by emitting a O3 which is a naturally occurring gas, effectively eliminating air in the car. This gas suffocates organic odors that hide in the fabric of your car and the tough to reach places. This treatment is so advanced that most detailers have never heard of it.