Inserted into the back of perforated ceiling panels, the Calma acoustic inlay improves sound absorption and thus ensures pleasant quiet in your rooms. Very high sound absorption values up to sound absorber class A can be achieved in this way. Moreover, the glass yarn inlay in a textile cover is noncombustible. Certified according to Oeko-Tex® standard 100, Calma combines high requirements for acoustics, fire protection and sustainability.