Chlorine Dioxide (CIO2) is an oxidising biocide. It kills micro-organisms (bacteria, viruses and spores) by attacking and penetrating their cell wall, disrupting the transport of nutrients across the cell wall and inhibiting protein synthesis. Since this action occurs regardless of the metabolic state of the organism, oxidising biocides such as Chlorine Dioxide are very effective against dormant organisms and spores (Giardia Cysts and Poliovirus).

Chlorine Dioxide is highly soluble in water as well as in a variety of organic material.