Foam fire extinguishers are used for Class A and Class B fires, and, in particular, offer a fast and effective means of suppressing flammable liquids. Foam consists of a stable mass of small air bubbles that form a foam blanket when expelled. This foam blanket works to extinguish the fire by cooling, separating the flame from the product surface, suppressing vapors and smothering. It also contains the flame to prevent reignition. Foam is the primary suppression agent used anywhere flammable liquids are transported, processed, stored or used as an energy source. It is preferred over fire sprinklers for hotter fires dues to its ability to quickly cool a fire, which minimizes property damage caused by the fire.
- Manufacturing plants
- Hardware stores
- Offices that store cleansers or paint
- Flammable liquid storage areas