Because bath mats typically sit on the bottom of showers or bathtubs, they can become dirty quite quickly. Not only are they exposed to the dirt, soap and grime that come off of those who shower, but they are typically wet a majority of the time, creating an ideal environment for mould and fungus to grow. To prevent a science experiment from growing on your rubber anti-slip bath map and to keep it looking sparkling clean, you should wash it regularly.
Rinse the bath mat with water to get it wet. Sprinkle Borax over the top of it until it is almost covered.
Wet a sponge or scrub brush. Rub the Borax into the bath mat with your sponge or brush. If the dirt and stains are stubborn, use a more abrasive brush to scrub the mat.
Rinse the bath mat with water until all of the solution has been washed off. Wipe the bath mat clean with a towel or hang it over a shower rod or similar object to dry.
Wipe your bath mat dry after each use. Doing so will cut down on how fast water stains, mould and mildew form on the mat. You could also place your bath mat in the washing machine. Wash it in the normal cycle with detergent. Do not place the mat in the dryer.