Halon and HFP is not effective for what type of fire?

• A. Class A
• B. Class C
• C. Class Bravo
• D. Class D

Answer: (C)

Fires involving flammable liquids need to cool the fuel and keep its vapors from mixing with air. Halon works by interrupting flame chemistry and displacing some oxygen, but it doesn’t provide cooling or a lasting blanket over a liquid fuel pool. High-expansion foam can blanket a hydrocarbon surface, but on true Class Bravo fires a simple application of Halon and basic foam isn’t reliably effective to stop vaporization and reignition. Because these media don’t consistently address both cooling and vapor suppression for hydrocarbon fires, they’re not the best choice for Class Bravo. That’s why the correct answer is Class Bravo.