What is the first step in using a Halon Fire Extinguisher for Type B and C fires?

The process of using a Halon fire extinguisher is critical for effectively combating Type B (flammable liquids) and Type C (electrical) fires. The correct initial step is to press down on the black lever safeguard, which is designed to prevent accidental discharge of the extinguisher. This safeguard ensures that the extinguisher remains inactive until the user is ready to deploy it properly.

Once the safeguard is disengaged by pressing down on the lever, the user can then proceed to pull the pin, aim at the fire, and sweep the extinguisher side to side. Each of these subsequent steps is important, but initiating the action by pressing down on the safeguard is essential for safe and effective operation, as it allows for deliberate control over the extinguisher's use.