Known for their versatility and effectiveness, play a crucial role in ensuring fire safety. These extinguishers utilise a foam-based extinguishing substance, typically known as aqueous film forming foam (AFFF), to quell fires, making them highly effective in tackling Class A and B fires that involve flammable liquids and solids. https://www.thesafetycentre.co.uk/fire-products/fire-extinguishers-and-fire-blankets/foam-fire-extinguishers-thomas-glover