1. Extinguishing fire extinguishers such as water type, foam, dry powder, halon and so on should be selected.
2. Extinguishing Class B Fire should choose dry powder, foam, halogenated alkanes, carbon dioxide, etc., extinguishing water soluble type B fire should not choose chemical foam fire extinguisher;
3. Fire extinguishing of Class C should be selected dry powder, halogen alkyl, carbon dioxide type extinguisher;
4. Extinguishing of live equipment fire should be selected halon, carbon dioxide, dry powder fire extinguishers;
5. Extinguishing A, B, C, class and live equipment fire should choose dry powder, halon fire extinguishers;
6. Extinguishing Class D fire should choose special dry powder fire extinguisher.