CSB/SJU facilities provide for separation of the work area from public access; hand washing facilities in every laboratory; and single-pass ventilation in laboratories necessitating closed doors to the laboratories to maintain proper pressure differential between the lab and the hall. Bleach and other chemical disinfectants are available in every laboratory, and an autoclave is used to decontaminate materials. In addition a gowning room precedes the entrance into the main microbiology/virology teaching laboratory. Two type IIA safety cabinets (laminar flow hoods) are available in NSC 203 and 223. (Appendix II describes the safety cabinets.) Laminar flow hoods are inspected annually. Gloves, masks, gowns, face shields and safety goggles are also provided as needed.