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Publication of BE711393ApublicationCriticalpatent/BE711393A/xx
B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
B08B15/023—Fume cabinets or cupboards, e.g. for laboratories