[BC] KOMO, Seattle building fire

[Alan Alsobrook]

Broadcast List USER wrote:
> First of all, neither Halon nor CO₂ remove oxygen from the air.  Both  
> displace Oxygen, and because it takes so much CO₂ to suppress a fire,  
> it makes the partial pressure of oxygen so low that human life cannot  
> be supported.  

CO2 works by displacing Oxygen, Halon works by interrupting the chemical 
chain reaction.

> Others have pointed this out, but there are not three, but FOUR  
> things needed for fire.  Heat, fuel, oxygen, AND A MECHANICAL ACTION.   
> Halon gums up the works on the fourth element.

That is a CHEMICAL chain reaction, not mechanical.

-- 
Alan Alsobrook CSRE AMD CBNT Certified Fire Officer & Haz-Mat 1,2,3,& 5
St. Augustine Fl. 32086 904-829-8885
aalso at Bellsouth.net