So, is fire extinguisher powder harmful to breathe? Yes, but only in the way a dusty wind is annoying. It’s not a silent killer. It’s a temporary, irritating guest that leaves once you open the door.
If you accidentally inhale some, you’ll cough, sneeze, and maybe hate life for five minutes. Then you’ll be fine. The real question is: isn’t it awesome that we have a powder that can stop a blaze without seasoning you with toxins? Science wins again.
