It is proved by authoritative experiments, after using the toothbrush for 3 weeks, millions of microorganisms have already been lurking among its bristles. That's why you need to keep it clean too! How? This toothbrush sterilizer uses UV with 253.7nm wavelength to kill up to 99.99% germs and bacteria that reside on your brush in less than 6 minutes. It easily mounts to your bathroom wall, freeing up more space and making it look cleaner. With 4 toothbrush capacity, this sterilizer provides complete family protection...or buy more if you have a bigger gang.