The principle of dry powder fire extinguisher: the dry powder fire extinguisher is filled with dry powder fire extinguishing agent. Dry powder fire extinguishing agent is a dry and easy-to-flow fine powder used for fire extinguishing. It is composed of inorganic salt with fire extinguishing effect and a small amount of additives after drying, crushing and mixing to form fine solid powder. Use compressed carbon dioxide to blow out dry powder (mainly containing sodium bicarbonate) to extinguish the fire.

Structure of dry powder fire extinguisher: Dry powder fire extinguisher uses carbon dioxide gas or nitrogen gas as power to spray the dry powder in the bottle to extinguish the fire. Dry powder is a dry, easy-to-flow fine solid powder, which is composed of a fire-extinguishing base material and additives such as moisture-proofing agents, flow promoters, and agglomeration inhibitors.
