How warships protect against chemical and biological contamination

Do warships have chemical, biological, radiological, and nuclear protection?

Yes. Ships can seal themselves and use washdown systems to clear chemical or biological contamination from exposed surfaces.

Salt water, wind, and weather complicate the effective use of mustard gas against ships. Modern warships nevertheless retain chemical, biological, radiological, and nuclear protection measures. They can seal internal spaces and wet or wash down exposed surfaces to remove contaminants. Maritime CBRN defence depends on whole-ship systems and environmental conditions rather than armour alone.