Fireguard FGFC2 � 2Kg CO2 Fire Extinguisher manufactured according to BS EN3 standards and are available in 2kg stored pressure type are easy to use and limit damage to delicate equipment and materials. Co2 is electrically non-conductive and therefore safe for fighting fires in electrically powered equipment. Co2 extinguishers are made of seamless carbon steel materials to withstand high storage pressure.