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Nukes

You Will Survive Doomsday

By Bruce Beach

Table of Contents

MYTHS

MYTH #04: You must filter the air coming into a shelter to remove the fallout.

One of the general misconceptions regarding fallout and fallout shelters is that the air itself may become radioactive. This is simply not true. Those with a little learning will then say "Ah, yes, but it will contain radioactive particles of fallout". That is true, but a properly designed air intake, even for an expedient shelter, will cause most of the particles to drop out of the air flow before the air enters the shelter.

Should the number of particles still suspended in the air be a problem, an expedient filter, such as a damp sheet hung in the air intake passageway, will do an adequate job of filtering the air.

If the air vents do not have automatic blast valves then the air passage should be quickly shut and remain shut for a few minutes after the brilliant flash of a nearby nuclear explosion (so as to prevent the popcorning effect described earlier). The air passages will have to be shut in every case where there is a large fire nearby that is generating carbon monoxide that would otherwise seep into the shelter.

Most expedient shelters will not have precautions such as those just described. The danger of carbon monoxide poisoning is one of the main reasons that most survival experts recommend that even if one has a basement in their house it is preferable to build an expedient shelter a considerable distance outside and away from existing structures in case of fire.