Affresh Washer Cleaner is to penetrate, dissolve and remove odor-causing residue that can occur in all washing machines. This specially tablet dissolves slowly, standing throughout the intact wash cycle and breaking up residue better than bleach. Simply place one in the wash basket -LRB- without clothes -RRB- and run a average Cycle -LRB- fiery option -RRB- or fair Washer Cycle. on infected tanks and safe for all washer components. once a month to keep your machine fresher and cleaner.