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Formaldehyde, an irritant, sensitizing gas and known human carcinogen, is widely used as formalin for cadaver preservation in gross anatomy laboratories where inhalation exposures are often excessive and adverse symptoms are prevalent. Until formaldehyde can be completely eliminated from the preservation process, engineered ventilation controls are the most critical aspect of formaldehyde hazard control in these environments. Basic, related industrial ventilation design principles will be discussed including dilution ventilation, enclosing, capturing and ductless local exhaust hoods, slots, plenum, effective zone of capture, baffles and supply air delivery. These proven, established design principals will be compared to the assortment of engineering methods that have been employed and described by numerous investigators with varying degrees of success. Ancillary concerns of maintenance, use, ergonomics, specimen desiccation, noise and economic considerations will also be addressed. Attendees will become conversant with basic gross anatomy lab ventilation concepts and approaches to better advocate for effective lab design, maintenance and operation at their institution.