As an organic waste gas purification unit, it is suitable for treating organic waste gases produced in various industries. The treatable organic solvents include benzene, ketones, esters, alcohols, ethers, alkanes, and other mixed types. This series of purification units can be widely used in automotive, shipbuilding, motorcycle, bicycle, household appliance, furniture, piano, and container production factory paint and spray workshops for organic waste gas purification. It can also be matched with production lines for shoe adhesive, printing iron cans, chemical plastics, printing inks, cables, and varnished wire.