If the laboratory has windows that open, they are fitted with fly screens. Facilities are used to contain infectious and other biological agents which present a risk of causing human disease, or present an environmental concern. Facilities are required to meet the criteria for BL-1 Facilities, and, in addition, are required to have biological safety cabinets or other appropriate personal protective devices. Facilities may contain centrifuges, shakers, mixers, blenders, and sonic disruption devices. An autoclave should be available for decontaminating laboratory wastes.
Facilities operate under the procedures established in a facility biosafety manual.
The contents of the facility manual are known and understood by all personnel who enter a BL-2 facility. Facilities operate under the procedures established in a facility biosafety manual. The contents of the facility manual are known and understood by all personnel who enter a BL-3 facility. In addition, in BL-3 Facilities the laboratory is separated from areas which are open to unrestricted traffic flow within the building. Passage through two sets of doors is the basic requirement for entry into the laboratory from access corridors or other contiguous areas.