It was the halon gas forcing out the oxygen, dropping the temperature to below zero, turning all the vapour to ice.
If a fire breaks out in the computer room, halon gas is released, and that would suffocate them.
A blast of halon gas can snuff out a raging gasoline fire in thousandths of a second.
In England, a company has begun marketing a letter box that uses a canister of halon gas to extinguish flames.
When the lab checks him out, tell them to look for halon gas.
The halon gas was there to smother a fire before it got started.
Within seconds the halon gas had displaced all breathable air from the compartment.
Against one wall stand more than a dozen fire-red tanks of halon gas, linked to discharge vents beneath the floor and suspended from the ceiling.
Remember, like, halon gas is released.
To provide a record of vessels using halon gas.