10.2 lb: The First Alert PRO5 is arguably the easiest extinguisher to find that meets all of our expert's requirements. ... In addition to a working ABC-class fire extinguisher, ...

A compact 2.5-pound extinguisher like the H3R ABC Fire Extinguisher works well for passenger vehicles – small enough to store conveniently while still providing adequate firefighting capacity.

To use the extinguisher, pull the locking pin. Aim at the base of the flames. Aiming is important as the contents of most household extinguishers last less than 10 seconds.