1. Wall-Mounted Negative Pressure Ventilation System
This is the best negative pressure ventilation system. It significantly improves the factory ventilation efficiency by up to 90-97%.
2. Wall-Mounted Negative Pressure Ventilation System (Elbow-type)
To prevent the extracted hot air from blowing directly to the neighbors, the Elbow Type is a good solution to allow the hot air to be discharged either upward or downward. This is also an environmental-friendly ventilation system. It improves the factory ventilation efficiency by 85-95%.
