Although the felt hat industry in Denton and Haughton was prosperous and an integral part of the town, working conditions in the factories were not risk free. One of the problems workers faced was mercury poisoning; mercury was used to separate the fur from the rabbit hide and workers were in regular contact with fur impregnated with mercury or exposed to mercury vapour. Inadequate ventilation in some parts of the hat making process led to other sorts of dangers; solvents were also used and on 14 January 1901 there was an explosion at the factory of Joseph Wilson & Sons in Denton, killing 13 people and injuring many more. The explosion was of vapour from methylated spirits used in the dying process.