Biological Deodorization BoxHigh-surface-area biofiller with microbial adhesion and growth, enabling microorganisms to form a biofilm on the biofiller surface in a suitable environment. The microorganisms within the biofilm utilize inorganic and organic substances from the waste gas as carbon and energy sources, maintain their life activities by degrading malodorous substances, and decompose the malodorous substances into odorless substances such as water, carbon dioxide, minerals, etc., achieving the purpose of VOCs purification treatment.