[Construction Case] Local Exhaust for Printing Room, Company S, a Semiconductor Manufacturing Manufacturer

The temperature difference between the intake and exhaust air has almost disappeared, resulting in improved heating and cooling efficiency.

At Company S, a manufacturer of foundational products, a local exhaust system had been installed for the discharge of organic solvents. However, this setup only expelled air outside, resulting in a constant negative pressure indoors. As a result, when doors were opened, outside air would enter, bringing in outdoor debris, which led to contamination of products and the production of defective items. To address this, a total heat exchanger was installed, which exchanged 70% to 80% of the heat from the exhaust air to the intake air, eliminating the decrease in heating and cooling efficiency. Additionally, airflow control dampers were installed in the supply and exhaust ducts to prevent the indoor environment from becoming negatively pressurized. 【Case Summary】 ■ Issues - The indoor environment was constantly under negative pressure. - Debris was adhering to products, resulting in defective items. ■ Results - The indoor environment became positively pressurized, eliminating defective products. - The temperature difference between the intake and exhaust air was nearly eliminated, improving heating and cooling efficiency. *For more details, please refer to the PDF document or feel free to contact us.

Contract manufacturingVentilation and Exhaust