Toothbrush is the home to harmful microbes like e-coli, salmonella, streptococcus & germs that just rinsing won’t destroy. Toothbrush to toothbrush contamination is a leading cause of the spread of infections and viruses in your home, even for those with good oral hygiene. The purpose of a toothbrush sanitizer is to eliminate these microbes. Thoroughly cleans the viruses and germs left behind on your toothbrushes, shavers, tongue cleaners.