Reference

Fire extinguisher types describe the agent inside — dry chemical, CO2, water, wet chemical, clean agent, or dry powder — a separate decision from the A-B-C-D-K fire class on the label. This guide explains each agent, the classes it is rated for, and its residue under NFPA 10, plus a worked facility example.

Most workplace fires start small enough to stop with a portable extinguisher, but only when you pick the right class and use it correctly. This guide explains the PASS method step by step, decodes fire classes A through K, walks through a real ABC unit, and covers the OSHA training rule and when to evacuate.