This is one of the labs within the BioSafety Level 3 laboratory. This is where the scientists work with live virus. A BL3 lab is very costly to construct, and must be entirely self contained, meeting strict OSHA regulations for air and water handling. The lab has its own air handling unit that does extensive filtering to the air before it is allowed to be exhausted to the outside. In addition, the entire lab is kept at negative pressure with respect to the outside space to keep air from escaping. When people enter and exit the lab, all air is pulled into the lab where it is filtered before being released.

This lab is the largest of its kind devoted to the research of AIDS. There are a total of 8 labs like the one above.