REDUCED FROM £10 TO £2 AND ALSO ONLINE FOR £5http://direct.asda.com/Tundra-Fire-Extinguisher/001126747,default,pd.html
This doesn't appear to be a full blown fire extinguisher but would be useful for small fires. If you are looking for them instore I found them near the lightbulbs and smoke detectors. It has a 5 year shelf life and I got one for home and one for my mum. 414ml can which is only a wee bit bigger than a large can of hairspray.
I think these would be ideal for the kitchen etc, but here is some text from the First Alert website.
First Alert's TUNDRA™ is a fire extinguishing spray that is more effective than a traditional fire extinguisher on most common fires.
TUNDRA™ is effective on:
•Common household fires - TUNDRA™ Fire Extinguishing Spray is able to extinguish common fires such as fabrics, paper, and wood.
•Cooking oil fires - TUNDRA™ Fire Extinguishing Spray is unique in that it is able to extinguish cooking oil fires. The liquid contents create a barrier or “blanket” that rapidly extinguishes the fire.
•Fires involving electrical equipment - TUNDRA™ Fire Extinguishing Spray is effective to use on fires involving electrical equipment of 110/220 volts (e.g. a fire started by a toaster). Independent testing has shown the spray pattern is not electrically conductive at 35,000 volts, even from 10 inches.