6. To kill germs that lurk on your smartphone all day the UV light is perfect, it’s not much about cleaning off smudges as germs. Mostly used in industrial settings for sanitizing.
7. If you keyboard looks really disgusting, it’s best you that you take it into the kitchen and dip in the kitchen to get all that dirt left from years of snacking while browsing. Just leave it to dry for at least 24 hours before you attempt to use it again.