Zep AC Flush is a fast-evaporating product designed to assist in the removal of particulate debris, oils, and moisture from AC systems. It is an environmentally-desirable product as it contains no chlorinated solvents or ozone depleting compounds (ODCs). Since it is fast-evaporating, it leaves no residue. It is also highly-effective as it quickly penetrates and removes soils from AC systems. It is also not corrosive as it contains no ingredients which will cause corrosion of metal surfaces.