Ozone treatment is the use of the gas ozone (O3) to remove odors, bacteria, and viruses. Your detailer will place an ozone generator in your vehicle for a designated amount of time, depending on the strength of the odor. As the gas permeates your car, the odor is neutralized and any bacteria and viruses are killed. Ozone treatments are the best method for removing stubborn odors. As a gas, it can reach inside vents, far under seats, saturate upholstery fibers, and reach all the nooks and crannies that you can’t.