A Biosafety Cabinet A biosafety cabinet (BSC) is a laboratory workspace designed to provide a controlled environment for handling hazardous biological materials. It protects laboratory workers, the environment, and the materials themselves by controlling the spread of contaminants. There are three main classes of biosafety cabinets, each with varying degrees of protection: Class I BSC: Provides protection for the worker and the environment but not for the sample. It has inward airflow to protect the user but does not filter the air going to the work area. Class II BSC: Provides protection for the worker, the environment, and the sample. It uses HEPA (High-Efficiency Particulate Air) filters to sterilize the air going both into and out of the cabinet. It's the most commonly used BSC in research and clinical laboratories. Class III BSC: Also known as a glove box, this cabinet provides the highest level of protection. It is entirely enclosed, and materials are handled through long, attached gloves, ensuring the operator is completely isolated from the hazardous materials.Biosafety cabinets help minimize exposure to biohazardous materials such as bacteria, viruses, or other microorganisms during procedures like tissue culture, microbiological testing, and handling infectious agents. Biosafety Cabinet (BSC) Laboratory Safety Class I BSC Class II BSC Class III BSC HEPA Filters Biohazard Protection Contaminant Control Hazardous Materials Microbiological Testing Tissue Culture Infectious Agents Glove Box Environmental Protection Aerosol Containment