Foam

Foam fire extinguishers are ideal for extinguishing fires originating from solid fuels (category A), such as wood and paper, and liquid fuels (category B), such as gasoline and oil. The foam forms a protective layer over the fuels, preventing their contact with oxygen and reducing the fire's temperature. 

The pressure gauge shows the internal pressure of the fire extinguisher. When its needle is in the green zone, the fire extinguisher is in excellent operating condition. It is the easiest and fastest way to make sure at any time that your car's safety equipment remains reliable.