The Calma acoustic insert, which is discreetly integrated into perforated ceiling panels, optimizes sound absorption and creates a pleasantly quiet atmosphere in your rooms. Very high sound absorption values up to sound absorber class A can thus be achieved. The non-combustible glass fiber insert with textile covering meets the requirements of building material class A1 in accordance with EN 13501-1 and is Oeko-Tex® Standard 100 certified, combining the highest standards of acoustics, fire protection, and sustainability. In addition, a black acoustic fleece can also be used.