Some plants intended for particular sectors such as pharmaceuticals, must comply with strict requirements for the protection of people and production processes. In these premises it is necessary to adjust the airflow and to control the air pressure in order to introduce additional fresh air. Europair has solutions for the air filtration, air distribution with terminal boxes or filtering ceilings, regulators for controlling the flow rates with high-precision Venturi -type systems and "Zero" loss shut-off dampers for the exclusion or maintenance of dangerous areas.