>>23533927chlorine gas Is heavier than air and will quickly display oxygen within a confined space, chorine gas is particular effect as a poisonous gas because it reacts to the water in the lungs to form hydrochloric acid, leading to tissue damage and death via asphyxiation. Heavy-than-oxygen poisonous gasses like theses were popular as chemical weapons in WWI because they work sufficiently in open-air environments, but particularly well in low areas such as bunkers, trenches, and dugouts since the heavier gas settles in the lowest areas.
This information has been around for well over a century yet it is conveniently forgotten by the “muh wood door” crowd.
