Our most effective odor neutralizer, The Odor Bomb  Slow Release is for your more challenging vehicles. Recommend at minimum 4hrs or even overnight, if the option is there.  Using "active" chlorine dioxide versus "stabilized chlorine dioxide"  distinguishes The Odor Bomb Slow Release from others. Not masking the odor with temporary fragrances but rather breaking down the odor molecules. Tobacco, pets, food, marijuana, musty air and any other "mystery" smell! Gone is the obnoxious, knock you off your feet chlorine or ozone smell. Eco-friendly, easyily transportable and so simple to use-  you won't believe it.