PreDinkel is an innovative acoustic material for use in sound absorbers for offices that is made from spelt husks - a biological waste product. The material provides efficient sound absorption and noticeably improves room acoustics. PreDinkel is 100% biodegradable, so it can be returned to the soil as a nutrient after use. Suitable for sustainable office furnishings, PreDinkel combines environmental protection with modern functionality, making it a pioneer for circular materials in office environments.