What type of fire extinguisher utilizes a pressurized cartridge to release the extinguishing agent?

A cartridge pressure extinguisher is distinguished by its use of a pressurized cartridge to expel the extinguishing agent. This design enables a controlled release of the agent, making it effective for a variety of fire types. The cartridge, filled with gas, maintains pressure within the extinguisher. When activated, the pressurized gas forces the extinguishing agent out, allowing for a concentrated and directed stream or spray to combat the fire.

This type of extinguisher is often preferred in applications where high performance and reliability are essential, as the pressurized cartridge helps maintain a consistent flow rate when needed. The effectiveness and ease of use make cartridge pressure extinguishers suitable for both residential and commercial firefighting needs.

In contrast, cylinder pressure extinguishers utilize the pressure of the contents directly without an additional cartridge, standard pressure extinguishers lack the specific mechanism of directing gas pressure through a cartridge, and foam pressure extinguishers refer to extinguishers that use foam but do not specify the cartridge mechanism. Hence, the unique design and functionality of the cartridge pressure extinguisher correctly identifies it as the answer to the question.