Measure 1/3 cup Clorox® Disinfecting Bleach with CLOROMAX®, and add it to 1 gallon cool water in a plastic dishpan.
If uncertain about the dye colorfastness, test material by applying 1 drop of the bleach solution to the corner or small part of mat.Be sure to check all colors. After 1 minute, rinse and blot dry. No color change means the article can be safely bleached.
Use the sponge to apply the bleach and water solution to the mat. Reapply as needed to keep the surface wet for 6 minutes for cleaning.
After 6 minutes, rinse thoroughly with clean water.
Prop up mat to air dry.