Sound absorber used in buildings comprises a plate-like absorption body consisting of an absorption mat made from a sound-absorbing material and parallel flat sides formed by a heat conducting layer permeable for sound waves

摘要

Sound absorber comprises a plate-like absorption body consisting of an absorption mat made from a sound-absorbing material and parallel flat sides formed by a perforated heat conducting layer permeable for sound waves. Coiled tubes are held with the heat conducting layer in a heat transfer contact and the absorption mat is formed between the coiled tubes.