Abstract: An apparatus comprising a dynamic vapor microchamber having a recessed area that accommodates a test material that includes chemical vapors emitted therefrom; an air inlet chamber that directs a flow of air towards the recessed area; at least one air flow wall adjacent to the recessed area and intersecting the flow of air, wherein the at least one air flow wall disrupts the air flow field as it flows towards the test material and produces a uniform and distributed laminar air flow field across a surface of the test material; a thermal controller under the recessed area that maintains a uniform temperature of the test material and the flow of air over the test material; and an air exhaust port that collects the vapors emitted from the test material. The apparatus may include a plurality of chambers arranged adjacent to one another.

Abstract: An orifice test calibration device tests the functionality of protective mask testers. The orifice test calibration device has a semi-rigid tubular channel with one end for sealing the flow outlet port of the protective mask tester and a second end for sealing the vacuum inlet port of the protective mask tester. The device also includes a sealable opening within the tubular channel and an insertable orifice plug having a set diameter for insertion into the sealable opening in order to calibrate the protective mask tester.

Abstract: An orifice test calibration device tests the functionality of protective mask testers. The orifice test calibration device has a semi-rigid tubular channel with one end for sealing the flow outlet port of the protective mask tester and a second end for sealing the vacuum inlet port of the protective mask tester. The device also includes a sealable opening within the tubular channel and an insertable orifice plug having a set diameter for insertion into the sealable opening in order to calibrate the protective mask tester.

Abstract: An NBC marker light is designed to be simplistic, lightweight, and expendable. The case is two pieces, designed for ease of assembly. The assembly includes a circuit card, one or more batteries, light sources, typically IR and visible LEDs, and a custom designed rotary switch. A diffuser is designed to enhance side visibility in all directions.