SonoFiber 124 Beige SonoFiber is ideal for nightclubs, restaurants, gymnasiums, houses of Worship, multi-purpose rooms and any other commercial or industrial environment where aesthetic concerns are secondary to performance and safety. Made From Recycled Cotton Fibers Charcoal, Light Gray, White & Beige Panel Color Options 'Class A' Fire-Rated: per ASTM E-87.