The air volume of the combined AHU ranges from 3,500m³/h to 200,000m³/h, allowing users to choose and combine units freely. It is primarily designed for air purification systems in various clean workshops, such as industrial electronics factories, precision machinery manufacturing, textile workshops, automobile spraying, GMP pharmaceutical plants, cosmetic production, and food processing facilities.

Units can be classified by structure into horizontal, vertical, and ceiling types. Based on application characteristics, they are available as general units, fresh air units, purification units, or special units (such as roof units, subway units, and computer room units).