A laminar flow hood is equipment used in laboratories in order to provide a pollution-free environment, as it offers a sterile and safe area within the laboratory, and any activity that is required safely can be carried out within it. The laminar flow hoods have a HEPA filter, which is responsible for filtering the air and maintaining the air flow.
While a biological safety cabinet (BSC) represents a primary containment barrier that allows safe working with biological agents. It is equipment that has a structure designed to prevent the exit of bioaerosols from the work area and therefore protect users and the environment from possible exposure to biological agents. There are three types: type I, type II, and type III. In the case of type I, it provides protection to the user and the environment but does not protect the product from possible contamination.