👉 A phlogistonist is a term that describes an individual who is highly sensitive to the elements, particularly sulfur and air. These individuals are often characterized by their heightened sensitivity to sulfuric acid or other forms of atmospheric pollutants. Phlogistonists may experience symptoms such as coughing up black soot, difficulty breathing, and skin reactions to the air they breathe. They have a higher risk of developing serious health problems from exposure to these chemicals.