Extraction cleaner

An extraction cleaner comprising:

• a cleaner body including a pump and a suction motor;
• a supply tank configured to be removably coupled to the cleaner body, the supply tank including a relatively basic first aqueous based cleaning solution;
• an additive tank including a relatively acidic second aqueous based oxidizing solution;
• a recovery tank configured to be removably coupled to the cleaner body;
• a cleaning tool configured to be fluidly coupled to the supply tank, the additive tank, and the recovery tank;
• and
• wherein the first aqueous based cleaning solution and second aqueous based oxidizing solution are mixed prior to application to a surface to be cleaned to form an aqueous based cleaning composition comprising water, peroxygen compound at a molar concentration of 5.0×10−2 to 2.1×10−1, metal chelating agent at a molar concentration of 1.70×10−3 to 5.2×10−3, carbonate anion (CO32-) at a molar concentration of 1×10−2 to 5.0×10−2, free-radical scavenger at a molar concentration of 2.0×10−3 to 1.1×10−1 and wherein the composition has a pH of 9.0 to 10.0.