Are theystill Using Halon Gas filled in Fire fighting system ? How it was used ? Any Human Hazard is there ? ?

Update:

What is the present new superseaded  economical Technology used now ?

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  • Joseph
    Lv 7
    3 weeks ago

    Halon 1301 is still used in aviation, US Military armored vehicles and by NASA.  Some legacy building fire suppression systems use Halon 1211 or 2402, however the new use of Halon 1211 and 2402 was banned by the Montreal Protocol.  The old systems in the buildings have to be replaced during major building renovations.  New systems use HFC-23, HFC-227ea, among other gases, in occupied areas, and carbon dioxide HCFC-124, HFC-125, HFC-134a in unoccupied areas. 

    Halon works by starving the fire of oxygen by displacing the oxygen in the atmosphere.  If the Halon displaces enough oxygen, it can become deadly.  In November 2008 a Halon 2402 release aboard  of a Russian submarine Nerpa, then undergoing builder's sea trials, killed 17 members of the shipyard acceptance team and 3 Russian Navy personnel.  

  • qrk
    Lv 7
    3 weeks ago

    In general, Halon extinguishers are banned. However, they might be used in aircraft (you would need to further research this). Halon inhalation is bad for your health.

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