Design Considerations and Operation:
Laminar airflow is used when low airborne concentrations of particles or bacteria are required. This airflow pattern is in one direction, usually horizontal or vertical at a uniform speed of between 60 to 90 ft/min. and throughout the entire space. The air velocity is sufficient to remove relatively large particles before they settle onto surfaces. Any contaminant released into the air can therefore be immediately removed by this laminar flow of air, whereas the turbulent airflow ventilated system relies on mixing and dilution to remove contamination.