A Laminar Flow Hood is a specialized piece of equipment used in laboratories to provide a sterile working environment. It works by drawing air through a HEPA filter, which removes contaminants, and then blowing the clean air in a smooth, unidirectional flow across the work surface. This helps protect sensitive materials and experiments from airborne particles and microorganisms. These hoods are commonly used in fields such as microbiology, pharmaceuticals, and tissue culture. They ensure that procedures involving cell cultures, sterile instruments, and biological samples are conducted in a controlled environment, minimizing the risk of contamination.