A drone for modifying air properties comprising : a body (2), an air ventilation mechanism (14, 15), an air circulation pathway, steering means (3), an air treatment portion (11, 12, 13) adapted for modifying air properties, arranged along the air circulation pathway, a processor (4) configured to control the steering means and the air ventilation mechanism. The processor is adapted to receive an instruction to modify air properties. The processor controls the steering means and controls the air ventilation mechanism based on the instruction, so that the drone navigates through air in the environment and the ventilation mechanism creates a circulation of air through the air treatment portion.