Carpet Cleaner Concentrate is formulated especially for cleaning carpets and rugs, not only Green Seal certified, but is also certified by the Carpet and Rug Institute as being safe for use on carpets in pre-spray and extraction cleaning. Carpet warranties that call for the use of only CRI approved products will not be jeopardized. Economical concentrate contains no added fragrance or volatile organic ingredients so cleaner will not adversely impact indoor air quality. GS-37 certified formula is color-free, nontoxic, noncaustic and nonflammable.