In a Class Bravo fire scenario with HFP equipment, what is the specific toxic gas mentioned?

• A. Hydrogen Fluoride
• B. Hydrocarbons
• C. Carbon Monoxide
• D. Nitrogen

Answer: (A)

When dealing with a Class Bravo fire and HFP equipment, the gas you must recognize as the hazard is hydrogen fluoride. Flames and heat can cause the HFP agent to release HF, a highly toxic and corrosive gas. Inhalation or skin contact can cause severe irritation, respiratory distress, and chemical burns, and HF can react with moisture in the eyes and lungs to form hydrofluoric acid, which can cause deep tissue damage and systemic effects. The emphasis here is on HF as the specific toxic gas produced by this setup, not the fuel itself or other common fire-related gases. Hydrocarbons are the fuels involved in Class Bravo fires, carbon monoxide can be produced in fires generally, and nitrogen is inert in this context; none of those are the specific toxic gas highlighted by using HFP equipment.