Nine items in the Optima Open Plan family of ceilings are now available with a fiberglass substrate made with a plant-based binder, the first in the country to use the new bio-based fiberglass binder, which is rapidly renewable and formulated without formaldehyde resins. The ceilings offer outstanding sound absorption with a Noise Reduction Coefficient (NRC) of 0.95 and Articulation Class (AC) of 190 and boast 71 percent recycled content.