Non-smokers are individuals who do not engage in the act of smoking tobacco or other substances. This group includes people who have never smoked, as well as those who have quit smoking and do not use any tobacco products. Non-smokers often seek to avoid exposure to secondhand smoke, which can pose health risks. Being a non-smoker is associated with various health benefits, including a lower risk of developing respiratory diseases, heart conditions, and certain types of cancer. Many non-smokers advocate for smoke-free environments, promoting public health initiatives that aim to reduce smoking rates and protect individuals from the harmful effects of tobacco, such as cigarettes and vaping.