You shoud learn about what mold is and why it grows. Every kind of mold is a fungus, just like mushrooms and athlete's foot, for example. The mold that is toxic to humans is relatively uncommon in the fungus world, meaning most kinds aren't dangerous. However, some molds are dangerous, so any mold in your home or business must be mitigated and completely removed.
You could think about contacting these mold removal and remediation Iowa City IA services even if you see less mold than that. If you see mold growth, there is probably more behind walls, in attics and elsewhere.
Check credentials before you hire a mold removal company.
You need to mitigate any mold growth you find to stop further harm, and do it right away. If you don't, mold damage will continue to feast on your home or business and can ruin your things.