A "Clean Bench" is a specialized workspace designed to provide a controlled environment for handling sensitive materials, such as biological samples or pharmaceuticals. It uses high-efficiency particulate air (HEPA) filters to remove airborne contaminants, ensuring that the area remains free from dust, bacteria, and other pollutants. This setup is crucial in laboratories where maintaining sterility is essential for accurate results. Clean benches come in various types, including laminar flow hoods and biosafety cabinets. They are commonly used in fields like microbiology, cell culture, and pharmaceutical research. By providing a clean and safe working area, clean benches help prevent contamination and ensure the integrity of experiments.