There's cardboard box in my room that used to be in another room that had mold all over the walls and it still smells moldy. This probably means the air in my room is polluted with mold spores.(right?)
If only a few spores stick to my wall could this "infect" the wall?
How many spores are actually needed to start infecting the walls in my room?
I threw that cardboard away, but I still wonder about the remaining spores