Both activated carbon adsorption tanks and adsorption boxes utilize activated carbon to capture pollutants from waste gas; however, they differ in terms of equipment structure, maintenance requirements, and operational applications. Adsorption tanks feature a vertical vessel design filled with granular activated carbon and are equipped with valves and piping; they support both adsorption and desorption/regeneration cycles, making them suitable for enclosed processes and the recovery of organic solvents. Adsorption boxes typically employ a drawer-style filter cartridge design, where the treatment capacity is restored by replacing the saturated activated carbon. When selecting equipment, it is essential to consider factors such as the waste gas flow rate, the composition and concentration of pollutants, whether solvent recovery is required, and whether the project involves intermittent or continuous operation. In cases requiring a multi-tank switching configuration, the adsorption cycle duration, as well as the time required for desorption and cooling, must also be factored into the equipment configuration assessment.