4shape is the sound absorbing panel that combines innovative design with excellent functional properties. It consists of an MDF panel bonded to a sliced wood veneer cladding. The MDF substrate is 16 mm thick, with perforations ø 8 mm and 16 mm apart, which form about 8000 reverberation chambers per sqm. The sound passes through the surface of the panel by means of the vast number of tiny perforations (+/-250 000 perforations/sqm) of ø 0,5 mm placed at a distance of 2 mm apart. The panels have a low formaldehyde content (E2) and CE certified in class "B-s0,dXNUMX" for reaction to fire.