Awareness of third-hand smoke: A cross-sectional study among medical students at Qassim University

The study found strong awareness among medical students about the persistence and health risks of third-hand smoke. The majority of the students understood that standard ventilation cannot fully eliminate smoke particles, which can linger on surfaces and pose health risks. However, smokers were less concerned about this persistence, and perceptions varied by gender. The findings suggest a need for targeted educational programs to improve understanding of third-hand smoke among both medical students and the general population.