Oxygen cleaners are a group of chemicals that primarily use hydrogen peroxide as an agent. When hydrogen peroxide reacts with a substance - such as dirt or grease- it releases an oxygen molecule and the energy from this reaction breaks down or "oxidizes" the soils. The net chemical result is water and oxygen. Therefore hydrogen peroxide is instantly 100% biodgradable. Hydrogen peroxide also has well-known disinfecting and deodorizing properties.
Switching over to oxygen cleaners like Concetrate128 is a great idea when you are searching for safe, environmentally preferable products.