Fig. 3

Burn pit simulator and rodent whole body inhalation exposure chamber system. A, iTOX Burn Pit Surrogate Generator schematic. Custom mixed pellets are used to feed fuel material into burner. Because of the modular nature, and high air flow volume, high resolution control and air sampling are possible in the burn generator and exposure chamber. HEPA: high efficiency particulate air filer; MFC: mass flow controller; LPM: liters per minute; VOC: volatile organic compound; PAH: polyaromatic hydrocarbon, GC/MS: gas chromatography/mass spectrometry. Exhaust is filtered prior to release above the Health Sciences Center roof. The entire system is enclosed in a walk-in safety hood. B, Military burn pit surrogate generator (left) and aerosol exposure system which can house rodent cages (right) contained in the WVU iTOX Inhalation Facility