Armstrong's OPTIMA 15/16in. Sq. LayIn Acoustic Fiberglass Ceiling Panels, White is engineered for longterm reliability in suspended grid systems. Its HUMIGUARD Plus technology maintains stability under humidity, while a ClassA fire rating provides peace of mind. The panels clean, washable finish holds up to rigorous cleaning protocols, including fogging per CDC guidelines, and its superior soil resistance preserves appearance over time. Nondirectional visual simplifies installation and reduces waste. Ideal for schools, libraries, offices, and healthcare settings, these panels offer acoustic excellence, light optimization, and lasting durability.