types of fire extinguisher 

• water,water mist or water spray-  fire extinguisher
• foam- fire extinguishers
• dry powder- standard or speacialist fire extinguishers
• carbon dioxide- (co2)- fire extinguisher
• wet chemicals- fire extinguisher
  
  
  

different classes of extinguisher 

Class A fire extinguisher – water, water mist, foam, dry powder, wet chemical
Class B fire extinguisher – water mist, foam, dry powder, CO2, some wet chemical
Class C fire extinguisher – water mist, dry powder
Class D fire extinguisher – specialist dry powder
Electrical fire extinguisher – CO2
Class F fire extinguisher – water mist, wet chemical.