Manufactured chemical products will kill mold.  However, this usually does not destroy the toxic metabolites produced by mold and often introduce their own chemical compounds into the environment, increasing the concentration of toxic properties even after the mold is killed.  Most products used in remediation are registered with the EPA under the Federal Insecticide, Fungicide, and Rodenticide ACT (FIFRA).  Pesticides or biocides were created to kill.  Many of these products have high toxicity and poor efficacy on eliminating mycotoxins produced by mold. Bioremediation uses micros and purified enzymes that metabolize mold and degradate mycotoxins into harmless compounds. Bioremediation methods were developed cleaning up Petro chemical oil spills in soil and protecting our food from mycotoxin contamination in agriculture. It is a safer and more effective system for eliminating mold and returning the environment back to its natural state.