Designed with an excellent resistance to mold and mildew, these medium textured panels offer a clean, fresh look. Touchstoneâ„¢ Acoustical Ceiling Panels contain a proprietary broad-spectrum standard formulation that inhibits the growth of mold and mildew. Medium textured with a non-directional pattern, these sag resistant panels are an optimal choice for use in schools, corridors, lobbies, offices and retail stores.