Blocks noise traveling through open return air grilles

Two models: Standard G2 (Speech specific) and Septum G2 (equipment noise and speech)

The Speech Guard G2 Plenum Return Silencer is at the pinnacle of durable sound control technology. This product is sized for standard ceilings and is easily installed above an existing ceiling plenum. The G2 Silencer blocks escaping sound while allowing airflow, and is available in two easily assembled models.