Scrubbers are devices used to remove pollutants from industrial exhaust gases before they are released into the atmosphere. They work by passing the gas through a liquid or solid material that captures harmful substances, such as sulfur dioxide or particulate matter. This process helps reduce air pollution and meet environmental regulations. There are different types of scrubbers, including wet scrubbers and dry scrubbers. Wet scrubbers use a liquid solution to absorb contaminants, while dry scrubbers use a solid material to capture pollutants. Both types play a crucial role in improving air quality and protecting public health.