... (0.9), 3.higher RH (90% ). Mineral Fiber Acoustic Ceiling Tiles: MaterialWet Formed mineral fiber SurfaceFactory Applied Vinyl Latex PaintNoise reduction coefficientNRC ... fire, warm-keeping, energy-saving, heat-insulatingPatternMineral Fiber Tile :Pine holes,fine fissured ,dune surface ,small box,any designs customers demand;OtherMold ...