Air pollutants are mainly divided into particulate matter and gaseous pollutants, requiring distinct filtration technologies. Mechanical air filters (such as HEPA) primarily rely on physical principles like fiber interception, inertial impaction, and diffusion to capture solid particles. For gaseous pollutants like odors and volatile organic compounds (VOCs), activated carbon filters are required. Activated carbon utilizes its massive specific surface area for physical adsorption, and some composite filters also incorporate chemical catalysis to decompose harmful gases. For complex industrial exhaust environments, adopting a composite filtration solution is the optimal choice.
