The »safe-let« range stands for a flexible inlet system. The inlets can therefore vary in terms of depth and width and can be adapted to the conditions of the building. The inlet frame consists of stable and weather-resistant PVC. The inlet shutters are produced from insulated polyurethane foam. Due to the insulation and the all round sealing, outgoing heat losses are kept to a minimum.
Due to the flexible, pluggable framework design it is possible to combine multiple inlets into individual inlet groups. It is therefore possible to configure multi air inlets for tunnel ventilation, and multiple inlets alongside one another can also be installed.