How to Use a Heptafluoropropane Fire Extinguisher:

1. Pull out the safety pin.

2. Position yourself upwind of the fire source, maintaining an effective distance of approximately two meters.

3. Hold the nozzle and direct the spray toward the base of the flames. Ensure the flames are fully covered, sweeping the spray from side to side while advancing to gradually extinguish the fire. For fires involving flowing liquids, aim the spray at the base of the flames. When tackling fires involving flammable liquids, avoid striking the liquid surface to prevent splashing. Heptafluoropropane extinguishers can handle electrical fires, but ensure the area is ventilated and power is disconnected to prevent electric shock. If suffocation occurs during operation, evacuate immediately and maintain a safe distance. Inspect the extinguisher after use to ensure it remains effective for future deployment.

The above outlines the usage procedure for heptafluoropropane fire extinguishers.