Dry powder fire extinguishers were introduced into the department in 1951.

"someone get a dry powder fire extinguisher .

A dry powder fire extinguisher is said to be a good improvised system for production of aerosol effective even in far infrared.

Purple-K, also known as PKP, is a dry-chemical fire suppression agent used in some dry powder fire extinguishers.

As with all alkali metals, lithium fires are difficult to extinguish, requiring dry powder fire extinguishers, specifically the Class D type (see Types of extinguishing agents).

These conversions are relevant to the use of NaHCO as a fire-suppression agent ("BC powder") in some dry powder fire extinguishers.