These are probably best used with both hands. But they are still lighter than the full sized ones you see in offices. They provide a much longer burst than the hand held ones.

AA 1kg Fire Extinguisher AA6653 – Uses ABC Powder Small Fires – Lightweight Easy Use UK Made 5 Yr Warranty, 1000 g, Red
4.0

AA 950g Fire Extinguisher AA1547 - Uses BC Powder Small Fires - Lightweight Easy To Use UK Made 5 Year Warranty
5.0