A dry scrubber is an air pollution control device used to remove harmful pollutants from industrial emissions. It works by passing exhaust gases through a dry chemical sorbent, which captures and neutralizes contaminants like sulfur dioxide and particulate matter. This process helps reduce the environmental impact of industrial operations. Unlike wet scrubbers, which use liquid solutions, dry scrubbers operate without water, making them more suitable for certain applications. They are commonly used in industries such as power generation, cement production, and waste incineration to comply with environmental regulations and improve air quality.