1. The unit has fresh air condition and return air condition, the air volume is from 1000m³ / h-18000m³ / h. It is widely used in hotels, shopping malls, office buildings, subways and other comfortable air conditioning systems that require centralized air treatment. 2. There are 3 kinds of standard external residual pressure to choose from, as well as different air outlet methods and coil row numbers. 3. The takeover position can be customized on the left or right side. 4. Among them, the dry processing unit is used in the purification system of electronic workshops and pharmaceutical factories with relatively small cooling capacity and large air volume.