Help prevent noise- the No. 1 distraction in the workplace.

Recommended products: Optima Open Plan: AC=200 Cirrus Open Plan: AC=170

AC rates a ceiling’s suitability for achieving normal speech privacy in open office spaces by absorbing noise reflected at an angle off the ceiling into adjacent cubicles. This is a measure of the noise reflected over office partitions (60", 1.5M high) in the frequencies critical to speech intelligibility and conversational privacy. AC is the primary measure of acoustic performance in the open plan. (Reference: ASTM E 1110 and 1111)

Superior acoustical performance ICON indicates Armstrong products with: high Articulation Class AC – minimum 170 high Noise reduction Coefficient NRC – minimum 0.65 To learn more information, you can refer to NRC or CAC.