Safety cabinet for storing e.g. carcinogenic agents in work area e.g. laboratory, has a flap that changes pivoting position as function of pressure difference between pressure in exhaust air duct and pressure in the working area

摘要

The safety cabinet (10) comprises an exhaust air duct (46) which is connectable to an external suction device of an exhaust air system, and a pivotable flap (72) which is set more visible from the exhaust air duct in the working area outlet arranged in the working area. The flap changes the pivoting position as a function of a pressure difference between the pressure in the exhaust air duct and the pressure in the working area.