What should be ensured to maintain the effectiveness of a laminar airflow workbench?

To maintain the effectiveness of a laminar airflow workbench, it is essential to ensure a continuous flow of air. This constant airflow creates a sterile environment by preventing contamination from the surrounding air. The laminar airflow system works by directing air in a unidirectional flow, which helps to sweep away any particulates, microorganisms, or contaminants that may enter the workspace.

A continuous flow of air is crucial because it establishes a barrier against outside contaminants while ensuring that the air within the workbench is filtered and clean. This is vital in sterile compounding environments, as any interruptions or obstructions in airflow could lead to an increased risk of contamination, compromising the sterility of the compounded products.

In contrast, constant obstructions in airflow or interruptions in airflow would disrupt the intended sterile environment, while air quality filtration is part of maintaining the system but does not directly relate to the flow of air necessary for its effectiveness. Thus, focusing on a continuous air flow is the correct approach to uphold the operational integrity of the laminar airflow workbench.