If extinguishers have been used and the space remains pressurized, what action should be taken if possible?

If extinguishers have been used and the space remains pressurized, what action should be taken if possible?

• A. Open vents
• B. Fuel supply
• C. Ventilation
• D. Seal compartments

Answer: (C)

Ventilation is used to purge a space after extinguishing a fire. When extinguishers have been discharged, the space can still contain extinguishing agents, smoke, and heated gases that displace oxygen and create a hazardous atmosphere. Ventilating moves air through the space, pushing out the dangerous gases and bringing in fresh air, which helps restore a breathable atmosphere and normal pressure. Opening vents alone can help, but actively ventilating (using natural flow or a blower) ensures the contaminated air is actually removed. Sealing compartments would trap the gases, and leaving fuel supplies in place could risk re-ignition.

Ventilation is used to purge a space after extinguishing a fire. When extinguishers have been discharged, the space can still contain extinguishing agents, smoke, and heated gases that displace oxygen and create a hazardous atmosphere. Ventilating moves air through the space, pushing out the dangerous gases and bringing in fresh air, which helps restore a breathable atmosphere and normal pressure. Opening vents alone can help, but actively ventilating (using natural flow or a blower) ensures the contaminated air is actually removed. Sealing compartments would trap the gases, and leaving fuel supplies in place could risk re-ignition.