Naval support company Fleet Support Limited (FSL) has completed the first fit of an upgraded Chemical, Biological, Radiological Nuclear (CBRN) filter system to the Royal Navy Type 23 frigate HMS Iron Duke during a maintenance period in Portsmouth. Using the NATO Radial filter, the new system takes into account the latest developments in CBRN equipment and technology, enabling reduced through-life cost of ownership by requiring less frequent filter changes. The new fit is set to be the forerunner for similar units to be installed in all ships in the Type 23 Class and underlines FSL’s growing technical capability in CBRN systems and collective protection.