Lung Health Day is observed on the fourth Wednesday in October as part of National Healthy Lung Month, focusing on raising awareness about chronic lung diseases. The day highlights the impact of air pollution, tobacco use, and unhealthy lifestyles on lung health, contributing to conditions such as asthma, chronic bronchitis, and lung cancer. Millions are diagnosed with these diseases annually, prompting calls for preventive measures like avoiding tobacco products, maintaining a healthy diet rich in antioxidants, and engaging in regular exercise. The American Association for Respiratory Care (AARC) established this observance to encourage individuals to be proactive about their lung health, including regular checkups and creating cleaner air environments at home and work.