Foam extinguishers are one of the most common fire extinguisher types. They are generally used for fires involving flammable solids and liquids and so are suitable for the majority of businesses.

• 9L
• Fires involving flammable solids, such as paper, wood, and textiles (‘class A’ fires)
• Fires involving some flammable liquids, such as petrol, diesel, and paint (‘class B’ fires)
• Fires involving electrical appliances IF the extinguisher has passed the 35kv conductivity test