Guards fabrics against MRSA, Staph, Ringworm and Herpes. This treatment also continually and proactively prevents odor, staining and deterioration without reducing wickability or performance. Simply add to your washload during the rinse cycle. You’ll soon notice the absence mildew smell and sweat odors on towels and clothes. One 2-ounce treatment lasts up to 30 washings. Contents treat up to 480 loads. 32 fluid ounces.