BG Frigi-Fresh® will safely and effectively eliminate foul, musty odors from A/C systems. Automobile air conditioners remove moisture from the air. This moisture can combine with airborne debris and settle in the system evaporator, leading to growth of mold spores and fungi. This, in turn, leads to smelly air blown into the vehicle. These contaminants can potentially cause allergic reactions in vehicle owners. BG Frigi-Fresh®: • Kills mold, mildew, fungi, and other odor-causing organisms • Works without costly manual cleaning of the system • Keeps the vehicle interior smelling fresh and clean BG Frigi-Fresh® is an EPA and USDA accepted disinfectant, deodorant and sanitizer.