Carbon tray chemical filter is mainly used in the treatment of organic waste gas. Activated carbon has very small pores-capillary and has super adsorption ability. The surface area of activated carbon is very large and can be fully in contact with the gas and adsorbed by the capillary. Activated carbon adsorption is used to remove peculiar smell, so as to achieve the effect of purifying air. It has the advantages of saving power, convenient operation and maintenance, and is suitable for organic waste gas treatment in hospital, electronic, pharmaceutical factory, chemical industry, sewage treatment plant, high-specification exhibition hall and other industries.