Phaedra,

Better read the label real good---this stuff is toxic !!

The Fe 241 is as good as Halon, but very toxic
The FM 200 isn't as toxic, but less effective as Halon.

What is as good a s Halon, is the anqueous foam extinguisher.
This is what most of the race car round de round guys are using.

And none of of this Halon replacement stuff is cheap.

Love and kisses,

Smokey the Bear