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Laminar flow cabinets create a particle-free working space to prevent sensitive materials becoming contaminated. They maintain a laminar stream of fluid with a satisfactory Reynolds number and maintaining lower viscosity of the fluid to prevent contamination within the workspace and to prevent contaminated fluid flows from outside that would occur with a turbulent flow. Categorized by the direction of the constantly projected airflow, horizontal or vertical enclosed bench configurations use pre-filters in addition to HEPA filters for aseptic air quality. Possible spills or aerosols generated are contained within the transparent safety glass and corrosive resistant frames to protect handlers. The laminar flow cabinets may include lamps to maintain sterilized conditions inside for contents.