Non-unidirectional airflow cleanrooms utilise turbulent airflow systems to clean particulate air and maintain a clean environment. The airflow characteristics in a non-unidirectional flow cleanroom are complex, compared with a unidirectional flow cleanroom. Non-unidirectional airflow cleanrooms utilize turbulent airflow systems to clean particulate air and maintain a clean environment. While laminar air flow filters are often a component of turbulent airflow systems, they are not the only systems employed. The entire enclosure is designed to use laminar flow and random, non-specific velocity filters to keep the air particle-free. Turbulent airflow can cause particle movement that can be difficult to separate from the rest of the air, but non-unidirectional airflow systems count on this random movement to move particles from the air through the filter.