Using the term “Hood” to encompass airflow cabinets such as Biosafety, Laminar flow, and Fume hoods has become increasingly common. However, it is crucial to identify and select the appropriate hood for your specific application as they’re used for different purposes. Each of them also has two major subcategories: Vertical and Horizontal for Laminar flow cabinets, A2 and B2 for Biosafety cabinets, and Ductless and Ducted for Fume hoods. Below are the technical differences between the six types.