When high concentrations or large volumes of infectious agents are used. Such materials may be centrifuged in the open laboratory if sealed heads or centrifuge safety cups are used and if they are opened only in a biological safety cabinet. Laboratory Facilities 1. Ensure that the laboratory is designed so that it is easily cleaned. Seamless or poured floor coverings are recommended.
Epoxy paint is recommended for the walls.
Junctures with the wall, floor, ceiling, and equipment should be rounded, with no corner seams. Laboratory furniture should incorporate as few sharp seams and cracks as possible. Penetrations in the floor should be sealed or capable of being sealed to aid decontamination. Bench tops must be impervious to water and resistant to acids, alkalis, organic solvents, and moderate heat. Spaces between benches, cabinets, and equipment must be accessible for cleaning.