Which extinguisher is recommended for Class D fires?

Class D fires involve combustible metals, such as magnesium, titanium, and sodium, and require specialized extinguishing agents that can effectively suppress these types of flames. Among the choices, a dry powder extinguisher is specifically designed for this purpose.

These extinguishers contain dry powder agents that can smother the fire and absorb heat, providing an effective means to combat fires involving flammable metals. The unique properties of the dry powder allow it to react safely and effectively with the burning metal, which is critical, as using the wrong type of extinguisher can exacerbate the fire or cause dangerous reactions.

The other types of extinguishers listed are not suitable for Class D fires. For instance, an ABC extinguisher is suitable for ordinary combustibles, flammable liquids, and electrical fires, but it is ineffective against combustible metals. Chemical extinguishers often refer to types that are not specifically tailored for metal fires, and foam extinguishers are primarily designed for liquid fires and would not work effectively on Class D materials. Thus, selecting a dry powder extinguisher is the best and most effective choice for addressing Class D fires.