EQ106-Credit 6.1 Credit Interpretation Request: Good laboratory design practice precludes the use of operable windows in spaces that have fume hoods or biological safety cabinets. This is because unpredictable airflow patterns (eddies) created by wind can cause fume hoods and biological safety cabinets to eject hazardous fumes and viruses, posing a threat to the health and safety of the occupants. Because of this fact, we would like to take perimeter laboratory space out of the equation. We are requesting relief from the requirements of this credit as it relates to laboratory space.