Anti-Allergy Carpet and Upholstery Shampoo is a natural enzyme based non-toxic formula that cleans carpet and upholstery while rendering allergens harmless. Dust mite waste, pollen, pet dander and mold spores are broke and neutralized. Penetrates deep into carpet and upholstery removing the toughest dirt without leaving a residue. Works in all common carpet cleaners in both hot and cold water. Highly concentrated. One quart will do up to 2000 square feet.