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A portal vapor detection system for sampling air proximal to the bodies of individuals in which air sampling tubes positioned within movable panels convey a gas flow into an analyzing system. Low vapor pressure materials such as plastic explosives or illicit drugs carried by individuals can be detec

A portal vapor detection system for sampling air proximal to the bodies of individuals in which air sampling tubes positioned within movable panels convey a gas flow into an analyzing system. Low vapor pressure materials such as plastic explosives or illicit drugs carried by individuals can be detected thereby enabling the prevention of their transport into aircraft or secured areas.

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A vapor sampling system for sampling vapor proximal to a body of a subject, the system comprising: a vapor analyzer to determine the components of a sample of gas; a moveable panel positioned in a doorway. the panel supporting a sampling tube with inlet ports through which vapor samples are drawn, t

A vapor sampling system for sampling vapor proximal to a body of a subject, the system comprising: a vapor analyzer to determine the components of a sample of gas; a moveable panel positioned in a doorway. the panel supporting a sampling tube with inlet ports through which vapor samples are drawn, the sampling tube transporting a gas flow from the inlet ports to the vapor analyzer, and the inlet ports drawing the gas flow from a region proximal to the body of the subject as the panel is displaced by the body of the subject passing through the doorway.