C. L. Blood's Bellows

Origin
Charles L. Blood was an American con artist and self-styled physician who operated in Boston, New York City, Philadelphia, and Chicago. He produced a patent medicine treatment known as "oxygenized air", which he promoted as a cure for catarrh, scrofula, consumption, and diseases of the respiratory tract. Among his other crimes included blackmail, tax evasion and possibly murder.

Effects
Creates a vapor that has the ability to seemingly cure diseases, unfortunately, the vapors that infect the victims lungs contract a more aggressive form of the ailment that was removed by the Bellows.