How did poor ventilation affect the working conditions in New York City cellar bakeries?

In the context of the tenement house cellars used as bakeries in late 19th-century New York City, the lack of adequate ventilation meant that flour dust and fumes—which are natural byproducts of the baking process—could not escape the workspace.1

These poor ventilation conditions were compounded by the physical environment of the cellars, which were not originally designed for commercial use. The spaces were often cramped, with ceilings as low as five and a half feet, and featured few windows, resulting in minimal light. Furthermore, the heat generated by baking ovens exacerbated the foul smells from leaking sewer pipes, creating an environment that was widely considered filthy and a health hazard to both the workers and the consumers of the bread produced there.1