Pregybel R15 n8 becomes Creason L5-80 n8 Creason L5-80 n8 boards are block perforated tiles, with the back side covered with a special noise insulation coating. This board features 5x80 mm linear perforations arranged on a modular pattern across 8 symmetric fields on the surface. The acoustic membrane is white. The perforated boards in the Creason range feature the CAPT'AIR technology to improve indoor air quality, which absorbs formaldehydes from the air and transforms them into neutral, inert compounds, preventing their re-emission into the air. This board is also available in a WAB version, for areas with constant high humidity.