Biosafety cabinets are specialized workspaces designed to protect users, the environment, and samples from contamination. They provide a sterile environment for handling hazardous biological materials, such as pathogens or genetic materials. These cabinets use high-efficiency particulate air (HEPA) filters to trap airborne particles, ensuring that harmful agents do not escape into the laboratory. There are different classes of biosafety cabinets, each suited for specific levels of risk. For example, Class I cabinets offer personnel protection but do not protect the samples, while Class II cabinets provide both personnel and product protection. Proper use and maintenance are essential for their effectiveness.