Third-hand smoke refers to the harmful chemicals that linger in the air and on surfaces after someone has smoked. These chemicals can be just as dangerous as second-hand smoke and can cause serious health problems, especially for young children. The theme of World No Tobacco Day 2022 is "Tobacco Threatens Our Environment", highlighting the need to protect our health and the environment from the dangers of tobacco. To prevent the dangers of third-hand smoke, it is essential to quit smoking and create a smoke-free environment. This can be achieved by avoiding smoking in enclosed spaces, using air purifiers, and washing clothes and surfaces regularly. By taking these steps, we can reduce the risks associated with third-hand smoke and create a healthier environment for everyone.