The activated carbon adsorption device is mainly composed of activated carbon, a supporting layer. It has developed voids, a large specific surface area, and a high adsorption capacity. Dust gas powered by a fan, positive pressure or negative pressure get into the tower body, due to the unbalance and unsaturated molecular attraction or chemistry bond on the surface of the activated carbon, when contact with gas the solid surface can attract a gas molecule to make them strong and keep them on the solid surface. Then the pollutants are absorbed and get into the filter system.