A 25kg Dry Chemical Powder (DCP) fire extinguisher is a large, high-capacity, mobile firefighting unit designed to extinguish Class A (solids), B (flammable liquids), and C (gas) fires by interrupting the chemical reaction of the fire. Typically mounted on a wheeled trolley, it holds 25kg of dry powder propellant and is designed for quick, high-volume, single-person operation in industrial or large commercial settings.