Abstract: Disclosed is a thermal desorber assembly for desorbing substances collected on a high-volume sampling (HVS) filter. The assembly includes, among other elements, a filter holder for securing a HVS filter within the assembly, a desorber body, and an insulating enclosure. The design of the thermal desorber assembly is such that it can accommodate a variety of different types of HVS filter media. Also described herein is a system comprising the thermal desorber assembly and method of using the assembly.

Abstract: Disclosed is a thermal desorber assembly for desorbing substances collected on a high-volume sampling (HVS) filter. The assembly includes, among other elements, a filter holder for securing a HVS filter within the assembly, a desorber body, and an insulating enclosure. The design of the thermal desorber assembly is such that it can accommodate a variety of different types of HVS filter media. Also described herein is a system comprising the thermal desorber assembly and method of using the assembly.

Abstract: Disclosed is a filter conditioning unit for cleaning and conditioning high-volume sampling (HVS) filters. The unit includes, among other elements, a filter tray suitable for holding one or more HVS filters, a manifold in which the filter tray is inserted, and an optional enclosure for safety. The manifold is suitable for heating the filter tray and filters therein to a desired temperature while purge gas is introduced to the manifold. Also described herein is a method of using the filter conditioning unit.

Abstract: Disclosed is a mixing chamber apparatus suitable for high-volume sampling (HVS) application. The mixing chamber apparatus includes, among other elements, inlet and outlet manifolds, a mixing chamber, and a tubing manifold for the introduction of clean, turbulent air into the mixing chamber. The inlet manifold defines a plurality of vapor ports that can be in fluid communication with one or more vapor sources to be sampled and mixed within the mixing chamber. Also described herein is a baffled mixing system that can be used alone or in combination with the disclosed mixing chamber apparatus.