In the process of cleaning my window a/cs for storage, I discovered one
has some mold growing on the styrofoam where the air blows out (the
metal parts are all fine -- figures). What is the best way to deal
with this? I'm not sure if I should use any wet sprays on the
styrofoam, or even a steam cleaner, and I can't find much info online.
Anyone have any experience in cleaning styrofoam??

Thanks