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system which will filter out all possible toxins. Air pumps force clean air through the filters into the safe area such that the air pressure within the safe area will always be higher than that outside of the safe area. This pressure differential means that any flows of air will always be from the
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attack. On a larger scale an overpressure system may be designed into the structure of a building or mobile prefabricated military structures to provide
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will have such a system with the safe area being the crew and passenger compartments, these systems being first adopted to protect against
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protection system is one designed to protect an individual or group of individuals in a chemical, biological, radiological and nuclear (
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The safe area may be as small as a protective hood for an individual, to a full body
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In a civilian context the same principles of filtration and
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safe area to the outside, preventing the ingress of toxins.
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