!arbon dioxide fire extinguishers (OU) are suitable for fire extinguishing of substances which can't burn without air access. They are intended for putting out ignitions of gaseous and liquid
substances - classes B, C. Handheld carbon dioxide fire extinguishers 2, 3, 5, 6, 8 litres are allowed fire extinguishing of electrical installations up to 1000V. Mobile carbon dioxide fire
extinguishers 10, 20, 40, 80 litres are allowed fire extinguishing of electrical installations up to 10000V.