Air quality engineers work to ensure that air quality is maintained. Their responsibilities may include performing tests on the air to identify dangerous amounts of toxins or hazardous materials. When air quality is poor they may recommend or employ strategies to improve it. Air quality engineers may also concentrate on producing equipment that is designed to reduce air pollution.
In order to do their job effectively, air quality engineers must know the applicable government regulations that need to be followed and the expected air quality standards for the environment they're testing. Some engineers work for the government and are responsible for such tasks as testing emissions and determining if an organization is in compliance with regulations. Other engineers work for companies that help ensure a business' products or procedures comply with regulation guidelines. They may also be involved in selling these services to customers.