SonoPerf D (D for design) combines specially-designed ultra-discreet embossing for optimal acoustics with a monolithic visual. The latest addition to Armstrong’s portfolio of metal and mesh metal ceiling solutions is particularly suitable for use with radiant chilled ceiling systems. This is due to its 3D fine micro-slotted embossing which allows for a homogenous air flow through the metal panels, improving the performance of a chilled ceiling system while providing good flow in a deflected air stream.