Decontamination.

Decontamination is the process of eliminating or inactivating unsafe materials and substances on a person or object. Depending on the contaminant, this process involves physical, chemical, or thermal means, and it should be performed quickly and thoroughly. Substances removed or destroyed by decontamination include poisons, radioactivity, and microbial pathogens (bacteria, viruses, and parasites). Decontamination renders objects safe for use and handling and keeps persons from spreading contaminants.