FireVent manufactures natural smoke and heat exhaust ventilators and roof lights at Vänersborg, founded in 2007 with eight employees, and states that it has been Sweden’s largest supplier of smoke vents to major contractors since 2017. Its published declaration of performance names RISE and certificate 0402-CPR-C500439, issued in December 2023 under system 1 with annual factory inspection. Declared performance to EN 12101-2:2003 is reliability Re 50, activation under sixty seconds, snow load classes SL250 to SL550 by size, low temperature T(-0), wind load WL 1500 and fire resistance B 300. Ten further declarations cover its other ranges.