Josh's research done has been to develop a standard method of test for commercial kitchen ventilation system filters. The project began with fully characterizing and calibrating the test kitchen, including the makeup air system, the electric griddle, and the exhaust air system. Phase Two of the project consisted of determining the fractional efficiency of a set of generic baffle filters using particulate from cooked hamburgers. Once the cooking tests were finished, a suitable surrogate to the hamburgers was determined, and the final test procedure was finalized and tested. The standard has since been adopted by ASTM under the designation F2519-05. The research conducted now consists primarily of outsource filter testing for interested parties.

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