The SVT2 is manufactured from galvanised steel and incorporates a high temperature axial fan unit suitable to operate at 2 speeds, low speed for day to day environmental extract and one off emergency extract 300°C for 2 hours at high speed. The unit is mounted using a unique mounting bracket which can be positioned prior to the unit being fitted. This unit incorporates specially designed inlet and outlet silencers which along with the fan unit are enclosed in a galvanised case. The standard unit is also reversible. The entire unit comprising of fan/motor assembly, inlet and outlet silencers have been tested and accredited to EN12101-3.