COLLECTIVE PROTECTION
In many cases, especially
when one has to protect a group of people, using personal protection
by means of a gas mask or special suits will prove inadequate. In these
circumstances, collective protection will have to be used. This means
sheltering the people in sealed tents or vehicles.
In this manner,
not only are the people protected from chemical agents in their liquid
form, they also receive a certain degree of protection from gaseous
agents since the air turnover in such contained places is much lower.
The concentration will thus rise at a slower rate and protective masks
can be easily donned without rushing.
In special bunkers,
the air supply is purified in much the same way as gas masks since the
air is drawn through an aerosol filter and a layer of carbon by means
of a fan. However, if there is a leak, it is almost certain that everyone
in the shelter will die if the concentration of the chemical agent is
high enough. Well, at least you'll die together. It's a whole lot more
reassuring to know that you aren't the only one to kick the bucket.