| Type | How it works / Danger of use | | Water Spray | Red | 
| | Best for: | Fires involving organic solid materials such as wood, cloth, paper, plastics, Coal etc. Size for size, it offers up to 300% more fire fighting capability than traditional jet type water fire extinguishers. Available in 3 and 6 litres. | | | | Danger: | Do not use on burning fat or oil or on electrical appliances. | | | | How to use: | Point the jet at the base of the flames and keep it moving across the area of the fire. Ensure that all areas of the fire are out. | | | | How it works: | Water has a great effect on cooling the fuel surfaces and thereby reducing the pyrolysis rate of the fuel. Instead of a jet nozzel a spray nozzel is used, with a higher pressure, which creates a fine spray . This allows for a given quantity of water to have a considerable increase in the surface area presented to the fire. This makes extinguishing more efficient by more rapid extraction of heat, formation of steam etc. They can also contain surfactants which help the water penetrate deep into the burning material which increase the effectiveness of the extinguisher. |
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