Foam systems are specialized fire suppression tools that use foam to extinguish fires. They work by creating a blanket of foam that smothers the flames, cutting off the fire's oxygen supply. This method is particularly effective for flammable liquids, as the foam can prevent the release of vapors that could ignite. These systems can be found in various settings, including industrial facilities and airports, where the risk of fire is higher. Foam is typically delivered through a network of pipes and nozzles, and it can be used in combination with other fire suppression methods, such as sprinkler systems or fire extinguishers.