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
Module autoportant assemblé autour d'un échangeur thermique de chaudière comportant un passage horizontal, et procédé d'installation et d'entretien du passage horizontal d'une telle chaudière