MF Industries manufactures passive components for smoke-control systems: horizontal and vertical smoke-extraction ducts, fire-rated technical shafts, volets de désenfumage and ventilation dampers, access hatches and the DESENFIRE board range, widely used in car parks and in residential and tertiary buildings. Its smoke-control dampers are CE-marked to EN 12101-8, and the DESENFIRE STR gypsum board is classified EI 120 with A1 reaction to fire to EN 13501-1, sold with CE marking and a Declaration of Performance. Fire test reports are issued by Efectis, CSTB and CERIB.