We handle them, breath on them, set them on surfaces that are almost definitely not clean. Our phones pick up germs and bacteria, along with dirt and grime. Do we really want to pick those up and put them close to our face? Would be a good idea to clean them first. But how do we do that without harming them?
Credo has published an online article called How to Safely Sanitize Your Phone and Keep it Germ-Free. Read it and learn what to do, including cleaning agents and proper handling.
If you think your phone is clean enough already, think about what Credo points out in their article: “Studies show that our phones carry around 17,000 bacteria per square inch — 10 times more bacteria than a toilet seat — and we touch our phones roughly 2,617 times a day. For heavy phone users, that number jumps to 5,427 times.”