I used it as well as a very dilute mold remover, but a mixture of H202, hydroperoxide dilute with water can be used with a light brush to remove mold and remove stains. Be careful to start with a weak concentration, for a short time and rinse well. I used it on my old IM with beige top and it whitened it quite a bit. Careful, that brush could ruin the nap of the Haartz top.