Question: what are the different types of fire extinguishing agents used in airplane?
Answer: For over 45 years, halogenated hydrocarbons (Halons) have been practically the only fire extinguishing agents used in civil transport aircraft. ... 
Two types of Halons are employed in aviation: Halon 1301(CBrF3) a total flooding agent, and Halon 1211 (CBrClF2) a streaming agent.