Biological Safety Cabinets (BSCs) are essential pieces of equipment used in laboratories, particularly those handling hazardous materials. BSCs are classified into different classes based on their design and level of protection they provide to both the operator and the environment. The primary classification system used for BSCs is defined by the NSF/ANSI 49 standard. Improved with a simple control panel includes a soft touch key that operates at maximum airflow velocity > 0.3 m/s.