Most extinguishers use a fine powder, usually monoammonium phosphate or sodium bicarbonate. Think of it as the Hulk version of baking soda—supercharged to smother flames.
When you inhale it, your throat might feel like you just ate a handful of chalk dust. It’s physically irritating, not chemically toxic, like a sandstorm in your sinuses. Cool, right? Your body just freaks out because it’s not used to breathing solid particles.
