Even after a cigarette is stubbed out, the risk persists. Thirdhand smoke—residues of tobacco toxins clinging to surfaces, clothes, and skin—can silently harm children, non-smokers, and even future residents of once-smoked-in spaces.

This emerging health hazard is not just invisible but dangerously underestimated. Learn how THS affects the most vulnerable, how it differs from secondhand smoke, and what reforms are urgently needed to protect lives.