USG Ceilings' Astro Square-Edge Acoustical Ceiling Panels also feature a bright white finish with a 0.86 light reflectance value to improve interior brightness without additional fixtures. Designed with sustainability in mind, each panel contains up to 68 percent recycled content and meets GREENGUARD standards for low chemical emissions. The square-edge profile allows for tight, uniform joints and easy grid alignment, while the ClimaPlus performance ensures long-term resistance to humidity, mold, and mildew. For professionals focused on efficiency, appearance, and acoustic performance, this panel delivers reliable results in demanding ceiling applications.