CoilShine coil cleaner is a safer, biodegradable non-acidic blend of powerful, fast-acting detergents, specifically formulated to clean even the dirtiest evaporator and condenser coils. Plus, it is CONCENTRATED, so it's like you are getting four times as much cleaner as you usually do. This biodegradable coil cleaner features powerful cleaning agents and degreasers, plus an expanding and self-advancing micro bubble foam formula - designed to penetrate coil beds. It is non-toxic, allowing for safe handling, and is safer than acids, or highly caustic cleaners, on coils and workers. It has a mild pleasant odor and can be used with CoilPro® coil cleaning products or pump sprayers without vacating occupied areas. CoilShine is biodegradable and can be safely washed down drains.