Toxic molds are called as such due to the harmful spores the fungi itself produces. These have mycotoxins that can harm humans through cytoxicity. Through this process, the released mold spores would kill living cells they have contact with in order to eliminate competition for resources. So if molds are present in your home, you and your family are in danger of having health problems. You must prioritize then to implement mold control measures in your home.
There are certainly many reasons why you need to keep molds under control in your home. It is precisely because of the problems that might come up with the widespread of molds in the internal environment of your house.