Foam fire extinguishers, renowned for their adaptability and efficiency, fulfill a vital function in maintaining fire safety. This equipment uses a foam-based extinguishing medium, usually identified as aqueous film forming foam (AFFF), for fighting fires, rendering them particularly suitable for dealing with Class A and B fires involving flammable liquids https://www.thesafetycentre.co.uk/fire-products/fire-extinguishers-and-fire-blankets/foam-fire-extinguishers-thomas-glover