DIN EN 1946-7 Ventilation Systems Directive
Safety cabinets should be connected to exhaust air systems and air feed channels in circulation in order to eliminate hazardous vapors and gases released inside the cabinet.
Due to the flammable atmosphere created inside the cabinet, exhaust air systems should be planned, installed and operated in a way that eliminates all possible hazards.
Only a continuously monitored ventilation system can allow the operator to take appropriate technical and organizational measures to prevent possible risks of a ventilation error.