Laminar flow cabinets create a particle-free working space to prevent sensitive materials becoming contaminated. 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.