One can keep distance from the fire (up to 4 meters) and keep out of reach of eg spitting fat.
Since it is an aqueous foam extinguishing agents, which also can be accurately metered, the environment is hardly additionally affected pulled (no powder around the room) - secondary, but you really do another.
Another advantage is that when a grease fire no wick effect may occur. Even a fire blanket can burn if it absorbs the fat.
The spray is about 3 year shelf life (I hope it is as long unneeded standing around) and can be used in case of fire the following classes:
Class A: solid substances (wood, paper, textiles)
Class B: Liquids (petrol, solvents)
Class F: Fats (Edible oils / fats in frying and baking equipment fat)