Pureair, WisconsinPureair is an unincorporated community located in the town of Bayfield, Bayfield [County, Wisconsin|Bayfield County], Wisconsin, United States.HistoryThe area was named after the Pureair Sanatorium which treated tuberculosis patients from Bayfield County, Iron County and Ashland County, as well as some veterans of World [War I], between the years 1920–1975. The sanatorium has since been demolished.