The Light Decontamination System is a Commercial off the Shelf (COTS) product ideal for Chemical, Biological, Radiological & Nuclear (CBRN) decontamination operations, offering the end user true interoperability via a multi-chemical payload approach. A man-portable backpack system the LDS delivers 4 litres of atomised chemistry driven by a 300 bar air cylinder. The technology comes certified to the European Pressure Equipment Directive and is based around the delivery of aerosolised chemistries that behave like a gas and will rapidly decontaminate all Line of Sight (LOS) and Non Line of Sight (NLOS) chemical and biological contaminants i.e. applicable to both airborne and surface decontamination. The system is also capable of delivering polymeric and high viscosity materials suitable for radiological tie down applications. The Light Decontamination System is principally designed for interior decontamination e.g. critical and iconic infrastructure, airport buildings, hospitals, underground facilities, buildings and rooms in general, containers, storage facilities, aircraft and ships holds, vehicles and so on.