It is widely used in places where clean air cannot be contaminated, such as microtechnology, biological laboratory, pharmaceutical factory, hospital, food processing industry, LCD, electronics factory.
It controls the ingress of particulate pollution into cleanrooms and other controlled environments where maintaining product and process integrity is critical. Traffic in personnel is the most important factor to be controlled. Pass boxes are an efficient solution as they allow materials to be transferred into the controlled environment without actual movement of personnel. They can also be used to protect the external environment from the exit of contamination, for example in biosafety laboratory applications.
