Because biosafety level 3 (BSL-3) organisms have the potential for aerosol transmission, and diseases with these agents may have serious lethal consequences, all of the following guidelines apply to BSL-3 laboratories except BSL-3 laboratories should:
A)be separated from other parts of the building by an anteroom.
B)have restricted access with documentation of personnel entering and exiting the laboratory.
C)have solid ceiling and floor seams, and any seams must be sealed.
D)have positive air pressure.

Question

Quizplus · Accepted Answer

BSL-3 laboratories must follow BSL-2 safety guidelines and must also have a class II or III biologic safety cabinet; must ensure that employees wear appropriate personal protective equipment (PPE); should be separated from the other parts of the building by an anteroom; should have negative air pressure and the air from inside the laboratory should be directed outside without recirculation; should have ceilings and floors that are solid and any seams sealed; and must be constructed so that all parts of the laboratory can be easily cleaned and disinfected.BSL-4 laboratories should have restricted access.

Because Biosafety Level 3 (BSL-3) Organisms Have the Potential for Aerosol