Can harmonicas be cleaned?
Rinse the harmonica with lukewarm water, then tap it against your hand, with the mouthpiece facing down, to remove any residual water. Leave it out to dry thoroughly afterwards.
How do you sanitize a harmonica?
You can dunk the whole harp with my comb under soapy water and slosh it around. Rinse it out, tap out the excess water and let it dry. You can use a hair dryer to warm up the inside of the harp to dry it out faster. If you need to disinfect in addition to cleaning, I recommend hydrogen peroxide.