Firefighting foam is perfectly suited to suppress fire. It is composed of premix solution (a ratio of water and foam concentrate) mixed with air. It forms a stable foam blanket which spreads above the fuels and adheres to surfaces. Some types of foam forms a film above the fuel surface and seals vapours. The use of fire fighting foam prevents fuel contact with oxygen, resulting in fire suppression. It also has a high cooling effect and will avoid reignition.