I clean daily in hot soapy water, rinse & place on a clean paper towel. Weekly, I place a silicon mat (potholder) in the bottom of a saucepan, fill with clean filtered water & boil (gently) for 10 minutes with my Aerobika & and nebulizer (the cups if using compressor, the whole head if using the InnoSpire Go) then let it cool and store it. Others use baby bottle sterilizers or microwave steamer bags. I go for simplicity - I live in a tiny house, and can't handle having any extra stuff to manage & store.
Sue