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...Laboratory hoods what s the difference many research and animal laboratories use containment devices to keep user separated from hazards they are working with these often referred by different names including cell culture hood tissue laminar flow pcr clean bench or biosafety cabinet an important thing note however is that not all of perform provide same level protection common feature equipment provides airflow for a work area but additional personnel environmental involving hazardous agents should always be conducted in appropriate device order protect worker it understand safety features each consider their application your biological bsc valuable supplement good sterile technique necessary when potentially infectious materials bscs high efficiency particulate air hepa filters treat intake exhaust filtered cabinets primarily designed against exposure particulates aerosols most recirculated back into lab through its filter this purifies dander bedding does reduce chemicals gases waste...