Many laboratories use equipment that can generate airborne contaminants, but cannot be used within a chemical fume hood. Examples include gas chromatographs, ovens, and vacuum pumps. Other types of local exhaust ventilation systems may be required to control contaminants generated by these operations
Bio-safety cabinets should be used for work involving bio-hazardous material. Chemical fume hoods are not designed to protect against aerosolized bio-hazardous material. More information about bio-safety cabinets is provided in the Biological Safety Manual.