Even with the camera tricks this thing looks weak af. That was like a quarter cup of the most mild accelerant possible and it hardly stopped it. Plus it's already in a reduced oxygen environment.
The reason why they're junk is that displacing oxygen for a while is helpful but a very hot fire will retain enough heat that everything will spontaneously ignite once oxygen re-enters the area. These are really only useful for putting out a fire right when it starts before it can build much heat.
Fire extinguisher grenades is an excellent idea, it just needs to be properly invented.
Let's see a demonstration with no cuts or edits.
Even with the camera tricks this thing looks weak af. That was like a quarter cup of the most mild accelerant possible and it hardly stopped it. Plus it's already in a reduced oxygen environment.
The reason why they're junk is that displacing oxygen for a while is helpful but a very hot fire will retain enough heat that everything will spontaneously ignite once oxygen re-enters the area. These are really only useful for putting out a fire right when it starts before it can build much heat.
Life changing video, saved me many times