- Splitter attenuator efficient according to the chamber absorption principle
- Aerodynamically shaped frame of galvanised sheet steel, stiffened by crimping
- Absorption material (highly biodegradable, no health risk) with laminated non-woven glass fibre fabric to provide protection against abrasion at air velocities of up to 20 m/s; rot-proof and moisture-repellent impregnation, non-flammable according to DIN 4102 A2
- External lambda panels and internal partitioning panels of galvanised sheet steel