VGF - Prismatic Fire / Smoke Damper is used to isolate the other parts of the ventilation system from flame, smoke and heat in case of a fire. It has been subjected to 132 minutes Fire Resistance Test according to EN 1366-2: 2015 standard by “Applus + Laboratories”, which has ENAC (Spanish Accreditation Agency) accreditation. According to EN 13501 3: 2005 + A1: 2009 standard, EI 120 (and, ho i <-> o) S fire resistance class conditions are met.