What class of fire extinguishers should be used for flammable gases?

Flammable gases, such as propane, methane, and hydrogen, pose a significant risk due to their ability to ignite easily and burn rapidly. The correct class of fire extinguisher to use for fires involving flammable gases is Class C. This class specifically addresses fires that involve energized electrical equipment and flammable gases. Extinguishers labeled for Class C use often contain non-conductive agents that can effectively extinguish flames while minimizing risk to electrical hazards.

The extinguishing agents suitable for Class C fires do not create additional hazards that could result from using water, which may react negatively with certain flammable gases. Therefore, a Class C fire extinguisher is designed to safely tackle these kinds of incidents, making it the appropriate choice for flammable gases.