The National Emerging Infectious Diseases Laboratory, better known as the BU biolab, is 192,000 square feet.

Dr. Ronald B. Corley, associate director for research at the lab, showed off the eye scanner used to enter the lab.

Research on the most lethal germs will not be allowed in these open-air sections of the lab.

Liquid waste from the lab will be pumped through reinforced pipes to storage vats where it will be cooked with high-pressure steam to kill germs.

Researchers who work with the most dangerous germs will be required to wear protective suits.

Boots must also be worn with the protective suits.

Ventilation from the lab includes a double filtration system to ensure that no dangerous germs escape.

The floor has a two-inch gap that protects the the lab in case of earthquakes.

Researchers will cover germs being studied in a centrifuge, to guard against any release in the labs.