S1 UV Portable Toothbrush SanitizerToothbrushes are the home to harmful microbes like e coli, salmonella, streptococcus & germs that rinsing alone wont 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. It uses germicidal ultraviolet light and kills 99. 9% of germs and bacteria. Thoroughly cleans the viruses