Star brite NosGUARD Car Bomb is the fastest, most effective way to remove even the most foul odor from the interior of a car, truck or RV. It utilizes a deep-penetrating vapor and EPA-registered, cutting-edge chlorine dioxide technology to thoroughly permeate the car’s interior and ventilation system. Car Bomb is the ideal way to quickly and permanently remove odors caused by cigarette smoke, pets, spilled food, water leaks or other sources of unpleasant smells. It is ideal for treating cars that have been smoked in. Car Bomb works fast but does not leave a toxic residue. The car can be used as soon as an hour after being treated.