Cellulose Fibrette wall/ ceiling tiles made of Wood Fibre & 15 mm thick, covered with Acoustically Transparent Absorptive paper on the front side with an option of colours as per the choice of the Architect.
| 125 | 250 | 500 | 1000 | 2000 | 4000 | 
| 0.25 | 0.3 0 | 0.4 | 0.5 | 0.8 | 0.91 |