The Airco Shield Purifier offers a solution to the problem of germs, bacteria, allergens, unpleasant odours and many other air contaminants that accumulate in a car. It creates ozone using shortwave ultraviolet inside a chamber within the machine. Ozone can eliminate tobacco smoke and many other contaminants, including odours from pets, rodents, mould, mildew, fast food, cooking and other sources. It seeks out bacteria and allergens by permeating the fabrics of upholstery, seats, roof linings and trim, as well as the fan blown air circulation system. Full treatment of a vehicle takes around 30 minutes.