Air quality control refers to the measures and practices implemented to maintain or improve the cleanliness of the air we breathe. This involves monitoring pollutants such as carbon monoxide, sulfur dioxide, and particulate matter to ensure they remain within safe limits. Various organizations, including government agencies, set standards and regulations to protect public health and the environment. Techniques for air quality control include the use of air filters, scrubbers, and catalytic converters in vehicles and industrial processes. These technologies help reduce harmful emissions and improve overall air quality. Public awareness and community initiatives also play a crucial role in promoting cleaner air and reducing pollution sources.