Fire extinguisher older models also achieved class B and C fire-fighting capability in the past, current models are rated A:K (Amerex, Ansul, Buckeye and Strike First) or K only (Badger/Kidde). Clean agents extinguish fire by displacing oxygen (CO or inert gases), removing heat from the combustion zone (Halotron-1, FE-36, Novec 1230) or inhibiting the chemical chain reaction (Halons). They are referred to as clean agents because they do not leave any residue after discharge which is ideal for protecting sensitive electronics, aircraft, armored vehicles and archival storage, museums, and valuable documents. Halon was completely banned in Europe and Australia except for critical
Honolulu Fire Department fire prevention and other public safety education programs. CRO manages the museum and offers fire safety classes. Class topics range from general fire safety prevention and preparedness tips, use of a fire extinguisher, understanding the common causes of fire, how to prevent fires, and what to do in case of a fire. CRO also participates in numerous fire safety education community events. A publication the HFD produces annually is the Fire Fighter’s Safety Guide (FFSG). The FFSG is now going on about 30 years since its first publication and about 100,000 copies are now distributed island wide to all schools.