thisusedyet t1_j1wa925 wrote
Reply to comment by Oscar_Cunningham in TIL that a typical fire extinguisher only lasts seconds while continuously being sprayed. A 20 pound extinguisher can only be sprayed for 25 seconds. by rtpkickballer
Apologies, I'd heard that a while ago and never questioned it. Turns out Halon fell out of favor because it damages the Ozone layer; CO2's the bigger danger for oxygen displacement.
EDIT:
Inhaling halon compounds in high concentrations can cause central nervous
system disorders including dizziness, unconsciousness and tingling in the arms and legs. Exposure
to halon compounds may also cause cardiac sensitization resulting in irregular heartbeats and even
heart attacks (in a severe circumstances). This is because when halon is used on fires, it produces
such decomposition byproducts as hydrogen chloride, hydrogen bromide and traces of free
halogens.
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