Acoustic self-supporting panel made of recyclable thermally bonded polyester fibers. Acoustic lining panels have constant dimensions, resist moisture and have very low dust content. They do not contain chemical binders, they do not irritate the respiratory tract or the skin. It is also recyclable. APP panels are suitable for visual sound insulation and absorbing reverberations inside buildings – they absorb a wide spectrum of noise. They improve acoustics both in homes and in offices and professional acoustic studios.