This category encompasses specialized equipment designed to remove and purify air pollutants such as harmful gases, dust, soot, and VOCs (Volatile Organic Compounds) generated from manufacturing facilities. It includes dust collectors, desulfurization equipment, denitrification systems, activated carbon adsorption units, thermal oxidizers, electrostatic precipitators, baghouse filters, scrubbers, and catalytic combustion systems. These are essential facilities for treating exhaust gases from manufacturing processes including painting, welding, chemical processing, and metal fabrication to meet regulatory emission standards and environmental compliance. This category is distinctly separate from wastewater treatment and noise control equipment, specifically targeting atmospheric emission control systems.