LUNG FUNCTION IN ROYAL NAVY FIREFI(;HTING INSTRUCTORS

The Royal Navy (RN) provides basic training in firefighting techniques which enable firefighters to deal with shipboard fires. Training includes fighting diesel, wood and oil fires to which instructors may be exposed for up to 4 hours per day, for 3 to 5 days each working week for two years. The instructors wear a cotton 'anti-flash ' hood; this hood does not have a filter and provides no respiratory protection. Previous investigation} o