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Morphologie

Title:		Local exhaust ventilation systems for the gross anatomy laboratory
Author(s):		Zdilla MJ;
Address:		"Department of Pathology, Anatomy, and Laboratory Medicine (PALM), West Virginia University School of Medicine, Robert C. Byrd Health Sciences Center, 26506 Morgantown, WV, USA; Department of Biology, West Liberty University, West Liberty, WV, USA; Department of Graduate Health Sciences, West Liberty University, West Liberty, WV, USA. Electronic address: matthew.zdilla@hsc.wvu.edu"
Journal Title:		Morphologie
Year:		2021
Volume:		20201202
Issue:		350
Page Number:		237 - 246
DOI:		10.1016/j.morpho.2020.11.002
ISSN/ISBN:		1286-0115 (Print) 1286-0115 (Linking)
Abstract:		"The inability to exhaust airborne formaldehyde and other volatile organic compounds from a gross anatomy laboratory is an impediment to gross anatomical education. Despite the importance of removing harmful airborne chemicals, there is scant information regarding how to build effective local exhaust ventilation systems. In this study, various exhaust systems were built and assessed for exhaust flow, airborne formaldehyde removal, and noise production with the aim of identifying inexpensive and simple exhaust systems that can create a healthy and quiet exhaust flow from a downdraft dissection table. The results of the study include details regarding 11 local exhaust ventilation systems, including an exhaust system that produces an exhaust flow of 777cfm, allows no detectable airborne formaldehyde (0ppm) despite a 1000mL pool of formalin (composed of 37% formaldehyde) positioned directly beneath a formaldehyde-meter, and operates at a very low noise level (maximum of 69.2dBA with coexisting baseline room noise of 38.6dBA). Furthermore, the aforementioned local exhaust ventilation system costs less than $400 (USD) to build and can be assembled in a matter of minutes with minimal know-how. The local ventilation systems assessed in this study were capable of down-drafting air away from the breathing zone; therefore, the utilization of such local ventilation systems may have the additional benefit of decreasing the person-to-person transmission of aerosolized pathogens. This information marks an improvement in laboratory health and safety measures, facilitates the creation of gross anatomy laboratories, and improves access to gross anatomical education"
Keywords:		"*Air Pollution, Indoor/analysis *Anatomy Cadaver Formaldehyde/analysis Humans Laboratories Ventilation Anatomy Formaldehyde Formalin;"
Notes:		"MedlineZdilla, Matthew J eng K22 AI087703/AI/NIAID NIH HHS/ P20 GM103434/GM/NIGMS NIH HHS/ France 2020/12/07 Morphologie. 2021 Sep; 105(350):237-246. doi: 10.1016/j.morpho.2020.11.002. Epub 2020 Dec 2"