9.1 Ventilation

General lab ventilation shall provide airflow into the laboratory from non-laboratory areas and out to the exterior of the building. Laboratory doors should remain closed except for egress and entrance.

Local Exhaust Ventilation equipment is a commonly used engineering control in the lab. Usually this is a chemical fume hood but also includes ventilated bench top cabinets, spot exhaust devices, and filtered cabinets for using hazardous solids.